Diagnostic Trouble Code (DTC) P0973
Shift Solenoid 1 (SS1) Electrical (Ground Short)
Conditions for Running the DTC
- No emergency mode.
- TCM detects the OFF signal (12V) of the Shift Solenoid 1(SS1) monitor, when SS1 driver outputs the ON signal (0V) for 0.5 seconds continuously.
Conditions for Setting the DTC
- Above detection continuously occurs 1 time.
Action Taken When the DTC Sets
- TCM will request the illumination of MIL and store DTC when TCM detects a failure on the first ignition cycle.
- No lockup control
- No engine torque reduction control
- No engagement pressure control
- No timing solenoid control for N-D
- No self-learning control
- After failure decision : emergency mode
TCM Shifting Pattern (Range : D)
Normal | SS1 FAIL |
Gear | SS1 | SS2 | Gear | SS1 | SS2 |
1 st | ON | ON | 3 rd | FAIL | OFF |
2 nd | ON | OFF | 3 rd | FAIL | OFF |
3 rd | OFF | OFF | 3 rd | FAIL | OFF |
4 th | OFF | ON | 4 th | FAIL | ON |
Conditions for Clearing the DTC
- The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
- The scan tool can clear the DTC from the TCM history.
- The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.
- TCM detects the ON signal of the SS1 monitor, when SS1 driver outputs the ON signal for 1000ms continuously.
Cause of Failure
- Wiring harness or connector between Shift Solenoid 1 (SS1) and TCM
- SS1
- TCM
DTC 0973 - Shift Solenoid 1 (SS1) Electrical (Ground Short)
| Step | Action | Value(s) | Yes | No |
| 1 | - Turn the ignition OFF.
- Install the Scan tool.
- With the engine OFF, turn the ignition switch to the ON position.
- Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu.
- Store Freeze Frame/Failure Records.
- Select Clear DTC Information from the Diagnostic Trouble Codes Information menu.
- Clear DTC Information.
- Perform one vehicle drive cycle.
Is the Malfunction Indicator Lamp (MIL) ON? | - | Go to Step 2 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 2 | - Select Request DTC by Status from the Diagnostic Trouble Codes Information menu.
- Request DTC by Status.
Is DTC P0973 displayed? | - | Go to Step 3 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 3 | - Turn the ignition OFF.
- Inspect the resistance between the vehicle harness and Shift Solenoid 1 (SS1). Refer to "Unit Inspection" in this section.
- Disconnect the TCM connector (X-1) and inspect the resistance between the terminal A16 and A23.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 4 | Go to Step 5 |
| 4 | - Estimate the failure of between the vehicle wiring harness connector and TCM.
- Inspect the connector. Refer to "Wiring Harness and Connector Inspection" in this section.
- Inspect the connection condition between the connectors (C-1).
Is the connection condition OK? | - | Go to Step 6 | Repair the wiring harness connectors. |
| 5 | - Estimate the failure of between the vehicle harness and SS1.
- Disconnect the connector (X-3) of T/M wire and inspect the resistance between SS1 connector terminal 5 and ground.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 7 | Go to Step 8 |
| 6 | - Replace the master TCM.
- Perform the reproducing test under user condition after confirming no DTC.
Is DTC displayed? | - | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) | Replace the TCM |
| 7 | - Estimate the failure of the vehicle wiring harness or between connectors.
- Inspect continuity and short circuit for the vehicle wiring harness and inspect the connection condition between connectors (C-3). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the vehicle harness or adjustment between connectors |
| 8 | - Estimate the failure of T/M wire or between connectors of SS1.
- Inspect the SS1. Refer to "Unit Inspection" in this section.
Is the problem found? | - | Replace the SS1 solenoid | Go to Step 9 |
| 9 | - Estimate the failure of T/M wire.
- Inspect continuity and short circuit for the T/M wire and inspect the connection condition between connectors (C-6). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the T/M wire or adjustment between connectors |
Diagnostic Trouble Code (DTC) P0974
Shift Solenoid 1 (SS1) Electrical (Open or Power Short)
Conditions for Running the DTC
- No emergency mode.
- TCM detects the ON signal (12V) of the Shift Solenoid 1(SS1) monitor, when SS1 driver outputs the OFF signal (0V) for 0.5 seconds continuously.
Conditions for Setting the DTC
- Above detection continuously occurs 1 time.
Action Taken When the DTC Sets
- TCM will request the illumination of MIL and store DTC when TCM detects a failure on the first ignition cycle.
- No lockup control
- No engine torque reduction control
- No engagement pressure control
- No timing solenoid control for N-D
- No self-learning control
- After failure decision : emergency mode
TCM Shifting Pattern (Range : D)
Normal | SS1 FAIL |
Gear | SS1 | SS2 | Gear | SS1 | SS2 |
1 st | ON | ON | 3 rd | FAIL | OFF |
2 nd | ON | OFF | 3 rd | FAIL | OFF |
3 rd | OFF | OFF | 3 rd | FAIL | OFF |
4 th | OFF | ON | 4 th | FAIL | ON |
Conditions for Clearing the DTC
- The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
- The scan tool can clear the DTC from the TCM history.
- The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.
- TCM detects the OFF signal of the SS1 monitor, when SS1 driver outputs the OFF signal for 1000ms continuously.
Cause of Failure
- Wiring harness or connector between Shift Solenoid 1 (SS1) and TCM
- SS1
- TCM
DTC P0974 - Shift Solenoid 1 (SS1) Electrical (Open or Power Short)
| Step | Action | Value(s) | Yes | No |
| 1 | - Turn the ignition OFF.
- Install the Scan tool.
- With the engine OFF, turn the ignition switch to the ON position.
- Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu.
- Store Freeze Frame/Failure Records.
- Select Clear DTC Information from the Diagnostic Trouble Codes Information menu.
- Clear DTC Information.
- Perform one vehicle drive cycle.
Is the Malfunction Indicator Lamp (MIL) ON? | - | Go to Step 2 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 2 | - Select Request DTC by Status from the Diagnostic Trouble Codes Information menu.
- Request DTC by Status.
Is DTC P0974 displayed? | - | Go to Step 3 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 3 | - Turn the ignition OFF.
- Inspect the resistance between the vehicle harness and Shift Solenoid 1 (SS1). Refer to "Unit Inspection" in this section.
- Disconnect the TCM connector (X-1) and inspect the resistance between the terminal A16 and A23.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 4 | Go to Step 5 |
| 4 | - Estimate the failure of between the vehicle wiring harness connector and TCM.
- Inspect the connector. Refer to "Wiring Harness and Connector Inspection" in this section.
- Inspect the connection condition between the connectors (C-1).
Is the connection condition OK? | - | Go to Step 6 | Repair the wiring harness connectors. |
| 5 | - Estimate the failure of between the vehicle harness and SS1.
- Disconnect the connector (X-3) of T/M wire and inspect the resistance between SS1 connector terminal 5 and ground.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 7 | Go to Step 8 |
| 6 | - Replace the master TCM.
- Perform the reproducing test under user condition after confirming no DTC.
Is DTC displayed? | - | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) | Replace the TCM |
| 7 | - Estimate the failure of the vehicle wiring harness or between connectors.
- Inspect continuity and short circuit for the vehicle wiring harness and inspect the connection condition between connectors (C-3). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the vehicle harness or adjustment between connectors |
| 8 | - Estimate the failure of T/M wire or between connectors of SS1.
- Inspect the SS1. Refer to "Unit Inspection" in this section.
Is the problem found? | - | Replace the SS1 solenoid | Go to Step 9 |
| 9 | - Estimate the failure of T/M wire.
- Inspect continuity and short circuit for the T/M wire and inspect the connection condition between connectors (C-6). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the T/M wire or adjustment between connectors |
Diagnostic Trouble Code (DTC) P0976
Shift Solenoid 2 (SS2) Electrical (Ground Short)
Conditions for Running the DTC
- No emergency mode.
- TCM detects that the OFF signal (12V) of the Shift Solenoid 2(SS2) monitor, when SS2 driver outputs the ON signal (0V) for 0.5 seconds continuously.
Conditions for Setting the DTC
- Above detection continuously occurs 1 time.
Action Taken When the DTC Sets
- TCM will request the illumination of MIL and store DTC when TCM detects a failure on the first ignition cycle.
- No lockup control
- No engine torque reduction control
- No engagement pressure control
- No timing solenoid control for N-D
- No self-learning control
- After failure decision : emergency mode
TCM Shifting Pattern (Range : D)
Normal | SS2 FAIL |
Gear | SS1 | SS2 | Gear | SS1 | SS2 |
1 st | ON | ON | 2 nd | ON | FAIL |
2 nd | ON | OFF | 2 nd | ON | FAIL |
3 rd | OFF | OFF | 3 rd | OFF | FAIL |
4 th | OFF | ON | 3 rd | OFF | FAIL |
Conditions for Clearing the DTC
- The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
- The scan tool can clear the DTC from the TCM history.
- The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.
- TCM detects the ON signal of the SS2 monitor, when SS2 driver outputs the ON signal for 1000ms continuously.
Cause of Failure
- Wiring harness or connector between Shift Solenoid 2 (SS2) and TCM
- SS2
- TCM
DTC P0976 - Shift Solenoid 2 (SS2) Electrical (Ground Short)
| Step | Action | Value(s) | Yes | No |
| 1 | - Turn the ignition OFF.
- Install the Scan tool.
- With the engine OFF, turn the ignition switch to the ON position.
- Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu.
- Store Freeze Frame/Failure Records.
- Select Clear DTC Information from the Diagnostic Trouble Codes Information menu.
- Clear DTC Information.
- Perform one vehicle drive cycle.
Is the Malfunction Indicator Lamp (MIL) ON? | - | Go to Step 2 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 2 | - Select Request DTC by Status from the Diagnostic Trouble Codes Information menu.
- Request DTC by Status.
Is DTC P0976 displayed? | - | Go to Step 3 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 3 | - Turn the ignition OFF.
- Inspect the resistance between the vehicle harness and Shift Solenoid 2 (SS2). Refer to "Unit Inspection" in this section.
- Disconnect the TCM connector (X-1) and inspect the resistance between the terminal A15 and A23.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 4 | Go to Step 5 |
| 4 | - Estimate the failure of between the vehicle wiring harness connector and TCM.
- Inspect the connector. Refer to "Wiring Harness and Connector Inspection" in this section.
- Inspect the connection condition between the connectors (C-1).
Is the connection condition OK? | - | Go to Step 6 | Repair the wiring harness connectors. |
| 5 | - Estimate the failure of between the vehicle harness and SS2.
- Disconnect the connector (X-3) of T/M wire and inspect the resistance between SS2 connector terminal 10 and ground.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 7 | Go to Step 8 |
| 6 | - Replace the master TCM.
- Perform the reproducing test under user condition after confirming no DTC.
Is DTC displayed? | - | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) | Replace the TCM |
| 7 | - Estimate the failure of the vehicle wiring harness or between connectors.
- Inspect continuity and short circuit for the vehicle wiring harness and inspect the connection condition between connectors (C-3). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the vehicle harness or adjustment between connectors |
| 8 | - Estimate the failure of T/M wire or between connectors of SS2.
- Inspect the SS2. Refer to "Unit Inspection" in this section.
Is the problem found? | - | Replace the SS2 solenoid | Go to Step 9 |
| 9 | - Estimate the failure of T/M wire.
- Inspect continuity and short circuit for the T/M wire and inspect the connection condition between connectors (C-6). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the T/M wire or adjustment between connectors |
Diagnostic Trouble Code (DTC) P0977
Shift Solenoid 2 (SS2) Electrical (Open or Power Short)
Conditions for Running the DTC
- No emergency mode.
- TCM detects that the ON signal (12V) of the Shift Solenoid 2(SS2) monitor, when SS2 driver outputs the OFF signal (0V) for 0.5 seconds.
Conditions for Setting the DTC
- Above detection continuously occurs 1 time.
Action Taken When the DTC Sets
- TCM will request the illumination of MIL and store DTC when TCM detects a failure on the first ignition cycle.
- No lockup control
- No engine torque reduction control
- No engagement pressure control
- No timing solenoid control for N-D
- No self-learning control
- After failure decision : emergency mode
TCM Shifting Pattern (Range : D)
Normal | SS2 FAIL |
Gear | SS1 | SS2 | Gear | SS1 | SS2 |
1 st | ON | ON | 2 nd | ON | FAIL |
2 nd | ON | OFF | 2 nd | ON | FAIL |
3 rd | OFF | OFF | 3 rd | OFF | FAIL |
4 th | OFF | ON | 3 rd | OFF | FAIL |
Conditions for Clearing the DTC
- The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
- The scan tool can clear the DTC from the TCM history.
- The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.
- TCM detects the OFF signal of the SS2 monitor, when SS2 driver outputs the OFF signal for 1000ms continuously.
Cause of Failure
- Wiring harness or connector between Shift Solenoid 2 (SS2) and TCM
- SS2
- TCM
DTC P0977 - Shift Solenoid 2 (SS2) Electrical (Open or Power Short)
| Step | Action | Value(s) | Yes | No |
| 1 | - Turn the ignition OFF.
- Install the Scan tool.
- With the engine OFF, turn the ignition switch to the ON position.
- Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu.
- Store Freeze Frame/Failure Records.
- Select Clear DTC Information from the Diagnostic Trouble Codes Information menu.
- Clear DTC Information.
- Perform one vehicle drive cycle.
Is the Malfunction Indicator Lamp (MIL) ON? | - | Go to Step 2 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 2 | - Select Request DTC by Status from the Diagnostic Trouble Codes Information menu.
- Request DTC by Status.
Is DTC P0977 displayed? | - | Go to Step 3 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 3 | - Turn the ignition OFF.
- Inspect the resistance between the vehicle harness and Shift Solenoid 2 (SS2). Refer to "Unit Inspection" in this section.
- Disconnect the TCM connector (X-1) and inspect the resistance between the terminal A15 and A23.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 4 | Go to Step 5 |
| 4 | - Estimate the failure of between the vehicle wiring harness connector and TCM.
- Inspect the connector. Refer to "Wiring Harness and Connector Inspection" in this section.
- Inspect the connection condition between the connectors (C-1).
Is the connection condition OK? | - | Go to Step 6 | Repair the wiring harness connectors. |
| 5 | - Estimate the failure of between the vehicle harness and SS2.
- Disconnect the connector (X-3) of T/M wire and inspect the resistance between SS2 connector terminal 10 and ground.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 7 | Go to Step 8 |
| 6 | - Replace the master TCM.
- Perform the reproducing test under user condition after confirming no DTC.
Is DTC displayed? | - | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) | Replace the TCM |
| 7 | - Estimate the failure of the vehicle wiring harness or between connectors.
- Inspect continuity and short circuit for the vehicle wiring harness and inspect the connection condition between connectors (C-3). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the vehicle harness or adjustment between connectors |
| 8 | - Estimate the failure of T/M wire or between connectors of SS2.
- Inspect the SS2. Refer to "Unit Inspection" in this section.
Is the problem found? | - | Replace the SS2 solenoid | Go to Step 9 |
| 9 | - Estimate the failure of T/M wire.
- Inspect continuity and short circuit for the T/M wire and inspect the connection condition between connectors (C-6). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the T/M wire or adjustment between connectors |
Diagnostic Trouble Code (DTC) P2769
Torque Converter Clutch (TCC) Electrical (Ground Short)
Conditions for Running the DTC
- No emergency mode.
- TCM detects that the OFF signal (12V) of the lockup solenoid monitor, when lockup solenoid driver outputs the ON signal (0V) for 0.5 seconds continuously.
Conditions for Setting the DTC
- Above detection continuously occurs 1 time.
Action Taken When the DTC Sets
- TCM will request the illumination of MIL and store DTC when TCM detects failures on two consecutive ignition cycles.
- No TCC lockup solenoid
Conditions for Clearing the DTC
- The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
- The scan tool can clear the DTC from the TCM history.
- The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.
- TCM detects the ON signal of the lockup solenoid monitor, when lockup solenoid driver outputs the ON signal for 1000ms continuously.
Cause of Failure
- Wiring harness or connector between lockup solenoid and TCM
- Lockup solenoid
- TCM
DTC P2769 - Torque Converter Clutch (TCC) Electrical (Ground Short)
| Step | Action | Value(s) | Yes | No |
| 1 | - Turn the ignition OFF.
- Install the Scan tool.
- With the engine OFF, turn the ignition switch to the ON position.
- Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu.
- Store Freeze Frame/Failure Records.
- Select Clear DTC Information from the Diagnostic Trouble Codes Information menu.
- Clear DTC Information.
- Perform two vehicle drive cycles.
Is the Malfunction Indicator Lamp (MIL) ON? | - | Go to Step 2 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 2 | - Select Request DTC by Status from the Diagnostic Trouble Codes Information menu.
- Request DTC by Status.
Is DTC P2769 displayed? | - | Go to Step 3 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 3 | - Turn the ignition OFF.
- Inspect the resistance between the vehicle harness and lock-up solenoid. Refer to "Unit Inspection" in this section.
- Disconnect the TCM connector (X-1) and inspect the resistance between the terminal A5 and A23.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 4 | Go to Step 5 |
| 4 | - Estimate the failure of between the vehicle wiring harness connector and TCM.
- Inspect the connector. Refer to "Wiring Harness and Connector Inspection" in this section.
- Inspect the connection condition between the connectors (C-1).
Is the connection condition OK? | - | Go to Step 6 | Repair the wiring harness connectors. |
| 5 | - Estimate the failure of between the vehicle harness and lockup solenoid.
- Disconnect the connector (X-3) of T/M wire and inspect the resistance between lock-up solenoid connector terminal 4 and ground.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 7 | Go to Step 8 |
| 6 | - Replace the master TCM.
- Perform the reproducing test under user condition after confirming no DTC.
Is DTC displayed? | - | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) | Replace the TCM |
| 7 | - Estimate the failure of the vehicle wiring harness or between connectors.
- Inspect continuity and short circuit for the vehicle wiring harness and inspect the connection condition between connectors (C-3). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the vehicle harness or adjustment between connectors |
| 8 | - Estimate the failure of T/M wire or between connectors of lockup solenoid.
- Inspect the lockup solenoid. Refer to "Unit Inspection" in this section.
Is the problem found? | - | Replace the lockup solenoid | Go to Step 9 |
| 9 | - Estimate the failure of T/M wire.
- Inspect continuity and short circuit for the T/M wire and inspect the connection condition between connectors (C-6). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the T/M wire or adjustment between connectors |
Diagnostic Trouble Code (DTC) P2770
Torque Converter Clutch (TCC) Electrical (Open or Power Short)
Conditions for Running the DTC
- No emergency mode.
- TCM detects that the ON signal (12V) of the lockup solenoid monitor, when lockup solenoid driver outputs the OFF signal (0V) for 0.5 seconds continuously.
Conditions for Setting the DTC
- Above detection continuously occurs 1 time.
Action Taken When the DTC Sets
- TCM will request the illumination of MIL and store DTC when TCM detects failures on two consecutive ignition cycles.
- TCM outputs no lockup signal.
- 1st gear fixed under the 10km/h (6mph).
Conditions for Clearing the DTC
- The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
- The scan tool can clear the DTC from the TCM history.
- The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.
- TCM detects the OFF signal of the lockup solenoid monitor, when lockup solenoid driver outputs the OFF signal for 1000ms continuously.
Cause of Failure
- Wiring harness or connector between lockup solenoid and TCM
- Lockup solenoid
- TCM
DTC P2770 - Torque Converter Clutch (TCC) Electrical (Open or Power Short)
| Step | Action | Value(s) | Yes | No |
| 1 | - Turn the ignition OFF.
- Install the Scan tool.
- With the engine OFF, turn the ignition switch to the ON position.
- Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu.
- Store Freeze Frame/Failure Records.
- Select Clear DTC Information from the Diagnostic Trouble Codes Information menu.
- Clear DTC Information.
- Perform two vehicle drive cycles.
Is the Malfunction Indicator Lamp (MIL) ON? | - | Go to Step 2 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 2 | - Select Request DTC by Status from the Diagnostic Trouble Codes Information menu.
- Request DTC by Status.
Is DTC P2770 displayed? | - | Go to Step 3 | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) |
| 3 | - Turn the ignition OFF.
- Inspect the resistance between the vehicle harness and lock-up solenoid. Refer to "Unit Inspection" in this section.
- Disconnect the TCM connector (X-1) and inspect the resistance between the terminal A5 and A23.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 4 | Go to Step 5 |
| 4 | - Estimate the failure of between the vehicle wiring harness connector and TCM.
- Inspect the connector. Refer to "Wiring Harness and Connector Inspection" in this section.
- Inspect the connection condition between the connectors (C-1).
Is the connection condition OK? | - | Go to Step 6 | Repair the wiring harness connectors. |
| 5 | - Estimate the failure of between the vehicle harness and lockup solenoid.
- Disconnect the connector (X-3) of T/M wire and inspect the resistance between lock-up solenoid connector terminal 4 and ground.
Is the measurement within the specified value? | 20°C (68°F) 11-16 Ω | Go to Step 7 | Go to Step 8 |
| 6 | - Replace the master TCM.
- Perform the reproducing test under user condition after confirming no DTC.
Is DTC displayed? | - | Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.) | Replace the TCM |
| 7 | - Estimate the failure of the vehicle wiring harness or between connectors.
- Inspect continuity and short circuit for the vehicle wiring harness and inspect the connection condition between connectors (C-3). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the vehicle harness or adjustment between connectors |
| 8 | - Estimate the failure of T/M wire or between connectors of lockup solenoid.
- Inspect the lockup solenoid. Refer to "Unit Inspection" in this section.
Is the problem found? | - | Replace the lockup solenoid | Go to Step 9 |
| 9 | - Estimate the failure of T/M wire.
- Inspect continuity and short circuit for the T/M wire and inspect the connection condition between connectors (C-6). Refer to "Wiring Harness and Connector Inspection" in this section.
Is the condition OK? | - | Repair the temporary connection failure of connector | Replace the T/M wire or adjustment between connectors |
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