DTC P0604 (Flash Code 62) Control Module Random Access Memory (RAM) (AWR6B45)

1. DTC P0604 description

This diagnosis is performed on the microprocessor inside the TCM.

2. Condition for setting DTC P0604

  • The TCM detects a RAM malfunction.

3. Action taken when DTC P0604 sets

  • The TCM flashes the check trans warning light. Refer to Action taken when DTC sets - Type A.

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC type definitions".

  • The TCM inhibits the shift timing control.
  • The TCM inhibits the lock-up timing control.
  • The TCM inhibits the slip lock-up control.
  • The TCM inhibits the garage control.
  • The TCM inhibits the self-learning control.
  • The TCM inhibits the engine torque control.
  • The TCM inhibits the skip gear shift control.
  • If the DTC is set in the reverse gear, the current gear position is retained.
  • If the DTC is set while running, the current gear position is retained. If a solenoid malfunction is found while running in 6th gear, the gear is shifted to 5th.
  • When the vehicle is stopped, the gear is shifted to 3rd.

4. Condition for clearing DTC P0604

  • Refer to Condition for clearing the MIL, check trans warning light/DTC - Type A or Type B.

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) DTC type definitions".

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