Diagnostic system check-transmission controls (AWR6B45)

  • If there are no complaints on drivability, do not perform these diagnostic steps unless otherwise instructed in other sections.
  • Check for related Service Bulletins before starting the diagnosis.
  • Do not clear the DTC unless instructed to do so in a diagnostic step.
  • The battery should be fully charged.
  • The battery cable should be normal and securely connected.
  • The ground of the TCM should be securely connected to the correct position.
  • The TCM harness connector should be clean and correctly connected.
  • The TCM terminals should be clean and correctly connected.
  • If DTC P0729, P0732, P0733, P0734, P0735, P1729, or P2714 is set, diagnose DTCs related to the sensors and solenoids first.

1. Scan tool power-up check

1) Connect the scan tool.

2) Check whether the scan tool powers up. Does the scan tool power up?

Yes

=>Go to TCM communication verification.

No

Go to Scan tool does not power up.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) Scan tool does not power up".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) Scan tool does not power up".

Refer to "51.Engine Control 1A.Troubleshooting(RZ4E-TC) Scan tool does not power up".

2. TCM communication verification

1) Turn ON the ignition switch.

2) Check the communication status with the TCM using the scan tool. Is communication with the TCM established?

Yes

=>Go to Current DTC check.

No

Go to Inspection for TCM communication malfunction.

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) lost communication with the TCM (models with radar sensor/ stereo camera)".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) lost communication with the TCM (models without radar sensor and stereo camera)".

3. Current DTC check

1) Observe the DTC information for the following systems with a scan tool. Is a DTC set?

  • ECM
  • TCM
  • TCCM (4WD models)

Yes

=>Go to Communication-related DTC check.

No

=>Go to Customer's concern check.

4. Communication-related DTC check

1) Observe the DTC information with a scan tool. Is a DTC that starts with U set?

Yes

Go to the applicable DTC diagnosis.

No

=>Go to Control module internal-related DTC check.

5. Control module internal-related DTC check

1) Observe the DTC information with a scan tool. Is DTC P0601, P0603, P0604, P1600, P1604, P1605, P1606, P1607, or P1613 set?

Yes

Go to the applicable DTC diagnosis.

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P0601 (Flash Code 61) Checksum Error".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P0603 (Flash Code 64) Internal Control Module EEPROM Error".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P0604 (Flash Code 62) Control Module Random Access Memory (RAM)".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P1600 (Flash Code 96) SIF CPU Communication Data Check".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P1604 (Flash Code 96) RAM Data Protect".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P1605 (Flash Code 96) ROM Check".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P1606 (Flash Code 96) CPU Core Test".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P1607 (Flash Code 97) Solenoid Cut Malfunction (Main or Sub solenoid cut line)".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P1613 (Flash Code 97) Solenoid Cut Malfunction (Main and Sub solenoid cut line)".

No

=>Go to System voltage-related DTC check.

6. System voltage-related DTC check

1) Observe the DTC information with a scan tool. Is DTC P0562, P0563, P2534, or P2535 set?

Yes

Go to the applicable DTC diagnosis.

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P0562 (Flash Code 72) System Voltage Low".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P0563 (Flash Code 72) System Voltage High".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P2534 (Flash Code 73) Ignition Switch Run/Start Position Circuit Low".

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC P2535 (Flash Code 73) Ignition Switch Run/Start Position Circuit High".

No

=>Go to Other DTC check.

7. Other DTC check

1) Observe the DTC information with a scan tool. Are other DTCs set?

Yes

Go to the applicable DTC diagnosis.

No

=>Go to Check trans warning light check.

8. Check trans warning light check

1) Turn OFF the ignition switch.

2) Turn ON the ignition switch.

3) Check the check trans warning light. Does the check trans warning light illuminate for 3 seconds and then turn OFF?

Yes

=>Go to Automatic transmission fluid temperature warning light check.

No

Go to Check transmission warning light illuminating circuit system check.

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) check transmission warning light illuminating circuit system check".

9. Automatic transmission fluid temperature warning light check

1) Turn OFF the ignition switch.

2) Turn ON the ignition switch.

3) Check the automatic transmission fluid temperature warning light. Does the automatic transmission fluid temperature warning light illuminate for 3 seconds and then turn OFF?

Yes

=>Go to Customer's concern check.

No (Does not illuminate)

Go to Automatic transmission fluid temperature warning light inoperative.

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) automatic transmission fluid temperature warning light inoperative".

No (Remains ON)

Go to Automatic transmission fluid temperature warning light always on.

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) automatic transmission fluid temperature warning light always on".

10. Customer's concern check

1) Check if the customer's concern is related to the following systems. Is the customer's concern related to the following systems?

  • Engine
  • Transfer

Yes

Go to the applicable control system inspection.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) Scan tool does not power up".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) Diagnostic system check-engine controls".

Refer to "51.Engine Control 1A.Troubleshooting(RZ4E-TC) Diagnostic system check-engine controls".

Refer to "53.Driveline Control 3A.Troubleshooting(4WD models) diagnostic system check-transfer case controls".

No

=>Go to Shift lock control check.

11. Shift lock control check

1) Start the engine.

2) Depress the brake pedal.

3) Check whether the selector lever can be operated from the P position. Can the selector lever be operated from the P position?

Yes

=>Go to Symptom check.

No

Go to Shift lock control circuit system check.

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) shift lock control circuit system check".

12. Symptom check

1) Operate the vehicle and check if the following symptoms are present. Is there any applicable symptom?

  • Vehicle with automatic transmission does not move.
  • Harsh shocks during automatic transmission shifting
  • Automatic transmission slips
  • Shift time lag of automatic transmission
  • Engine of the vehicle with automatic transmission stalls.
  • Acceleration failure of the vehicle with automatic transmission
  • Automatic transmission cannot shift
  • Kickdown does not occur.
  • Erratic shifting of the automatic transmission
  • Selector lever movement is stiff or loose
  • Mode select does not work.
  • ATF leakage
  • Abnormal noise or vibration of the vehicle with automatic transmission
  • Engine cannot be started when shifted to N or P

Yes

Repair the applicable symptom.

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) Vehicle with automatic transmission does not move".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) harsh shocks during automatic transmission shifting".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) automatic transmission slips".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) shift time lag of automatic transmission".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) engine of the vehicle with automatic transmission stalls".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) acceleration failure of the vehicle with automatic transmission ".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) automatic transmission cannot shift".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) kickdown does not occur".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) erratic shifting of the automatic transmission".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) selector lever movement is stiff or loose".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) mode select does not work".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) ATF leakage".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) abnormal noise or vibration of the vehicle with automatic transmission".

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) engine cannot be started when shifted to N or P".

No

Go to Intermittent conditions of automatic transmission.

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) Intermittent conditions of automatic transmission".

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