Page 1309 of 5267
P0523-OIL PRESSURE CIRCUIT HIGH
For a complete wiring diagramRefer to Section 8W.
Page 1312 of 5267
P0601-PCM INTERNAL CONTROLLER FAILURE
For a complete wiring diagramRefer to Section 8W.
When Monitored:
With the ignition on.
Set Condition:
Internal checksum for software failed, does not match calculated value. One Trip Fault, Three Good Trips to
clear.
Possible Causes
PCM
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.PCM
NOTE: Diagnose any CMP or CKP Sensor faults before continuing. Check for intermittent loose CMP or CKP
connections.
The Powertrain Control Module is reporting internal errors, view repair to continue.
Repair
Replace and program the Powertrain Control Module per Service Information.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
Page 1313 of 5267
P0622-GENERATOR FIELD NOT SWITCHING PROPERLY
For a complete wiring diagramRefer to Section 8W.
Page 1317 of 5267
P0645-A/C CLUTCH RELAY CIRCUIT
For a complete wiring diagramRefer to Section 8W.
Page 1321 of 5267
P0801-REVERSE GEAR LOCKOUT CIRCUIT OPEN OR SHORTED
For a complete wiring diagramRefer to Section 8W.
Page 1325 of 5267
P1195-O2 SENSOR 1/1 SLOW DURING CATALYST MONITOR
For a complete wiring diagramRefer to Section 8W.
Page 1328 of 5267
P1196-O2 SENSOR 2/1 SLOW DURING CATALYST MONITOR
For a complete wiring diagramRefer to Section 8W.
Page 1331 of 5267
P126B-ASD CONTROL CIRCUIT 2 LOW
For a complete wiring diagramRefer to Section 8W.