Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) diagnostic system check-transmission controls".
1) Connect the scan tool.
2) Turn OFF the ignition switch for 30 seconds or more.
3) Operate the vehicle in the 1st gear of the manual mode.
4) Observe the DTC information with a scan tool. Is a DTC set?
Yes
=>Go to Prioritized DTC check.
No
Go to Intermittent conditions of automatic transmission.
Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) Intermittent conditions of automatic transmission".
1) Turn OFF the ignition switch for 30 seconds or more.
2) Turn ON the ignition switch.
3) Observe the DTC information with a scan tool. Is DTC P2763 or P2764 set at the same time?
Yes
Go to the applicable DTC diagnosis.
No
=>Go to Lock-up control solenoid (SLU) high-side control circuit voltage check.
1) Turn OFF the ignition switch.
2) Disconnect the transmission internal harness connector (E42).
3) Connect a test lamp between the lock-up control solenoid (SLU) high-side control circuit (pin 21 of E42) of the transmission internal harness and the body ground.
Refer to "LHD Automatic Transmission" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD Automatic Transmission" in the ETM (wiring diagram). (Open using the ETM viewer.).
4) Turn ON the ignition switch. Does the test lamp illuminate?
Yes
=>Go to Check for short to ground in lock-up control solenoid (SLU) low-side control circuit.
No
=>Go to Inspection for short circuit in lock-up control solenoid (SLU) high-side control circuit.
1) Turn OFF the ignition switch.
2) Disconnect the TCM harness connector (E5).
3) Connect a test lamp between the lock-up control solenoid (SLU) low-side control circuit (pin 22 of E42) of the transmission internal harness and the battery power supply. Does the test lamp illuminate?
Refer to "LHD Automatic Transmission" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD Automatic Transmission" in the ETM (wiring diagram). (Open using the ETM viewer.).
Yes
=>Go to Inspection for short to ground in lock-up control solenoid (SLU) low-side control circuit.
No
=>Go to Inspection of transmission internal harness.
1) Inspect the lock-up control solenoid (SLU) high-side control circuit between the TCM (pin 7 of E5) and the transmission internal harness (pin 21 of E42) for a short to the lock-up control solenoid (SLU) low-side control circuit. Is the result normal?
Refer to "LHD Automatic Transmission" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD Automatic Transmission" in the ETM (wiring diagram). (Open using the ETM viewer.).
Yes
No
Repair the circuit as necessary.
1) Inspect the lock-up control solenoid (SLU) low-side control circuit between the TCM (pin 6 of E5) and the transmission internal harness (pin 22 of E42) for a short to ground. Is the result normal?
Refer to "LHD Automatic Transmission" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD Automatic Transmission" in the ETM (wiring diagram). (Open using the ETM viewer.).
Yes
No
Repair the circuit as necessary.
1) Inspect the circuit between the transmission internal harness (pins 21 and 22 of E42) and the lock-up control solenoid (SLU) for the following. Is the result normal?
Refer to "LHD Automatic Transmission" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD Automatic Transmission" in the ETM (wiring diagram). (Open using the ETM viewer.).
Yes
Replace the valve body assembly.
Note
Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) transmission removal".
Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) transmission disassembly".
Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) transmission reassembly".
Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) transmission installation".
No
Repair the circuit as necessary.
Note
Refer to "5.Transmission, Transaxle 5Z.Transmission Electrical Control(AWR6B45) TCM removal".
Refer to "5.Transmission, Transaxle 5Z.Transmission Electrical Control(AWR6B45) TCM installation".
Refer to "5.Transmission, Transaxle 5Z.Transmission Electrical Control(AWR6B45) TCM setting".
Procedure completion
1) Clear the DTC with a scan tool.
Note
2) Turn OFF the ignition switch for 30 seconds or more.
3) Operate the vehicle in the 1st gear of the manual mode.
4) Observe the DTC information with a scan tool.