P0604

Test 1 Through 3:

Test 4 Through 5:

Symptom:
P0604-INTERNAL TRANS CONTROLLER

When Monitored and Set Condition:
P0604-INTERNAL TRANS CONTROLLER

When Monitored:
One time after a reset (ignition key turned to the RUN position or after cranking engine).

Set Condition:
The read and write value does not match for any RAM location. Transmission in LIMP-IN, MIL on after 10 secs of vehicle operation.

POSSIBLE CAUSES
CHECKING SYMPTOMS AND POSSIBLE CAUSES
LOW BATTERY VOLTAGE
INTERMITTENT CODE P0604
P0604 STARTS SINCE SET COUNTER LESS THAN 3
SETTING DIAGNOSTIC TROUBLE CODE P0604