Express 3/4 Ton Van V8-6.5L DSL Turbo VIN F (1999)
Engine Control Module: Service and Repair
Repair Instructions
PCM Programming (TDC Offset)
The PCM will automatically activate the TDC Offset program when the engine coolant is greater than 77°C (170°F). If the PCM is not programmed with
a TDC Offset, a DTC P1214 will set.
PCM Replacement/Programming
If the diagnostic procedures call for the PCM to be replaced, then programming the EEPROM in the PCM will be necessary.
REMOVAL PROCEDURE
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cables.
2. Remove the Engine Cover.
3. Disconnect the harness connectors from the PCM.
4. Remove the PCM mounting nuts.
5. Remove the PCM from the mounting bracket.
IMPORTANT: To prevent possible electrostatic discharge to the PCM, do not touch the component leads, and do not remove the integrated circuit
from the carrier.
6. Remove the PCM mounting hardware.
INSTALLATION PROCEDURE
