C 1500 Truck 2WD V8-5.3L VIN T (1999)
4. Disconnect the PCM harness connectors (6).
5. Release the spring latch (2) from the PCM.
6. Release the PCM mounting tabs (3) from the PCM.
7. Remove the PCM (4) from the engine compartment.
INSTALLATION PROCEDURE
NOTE: Do not touch the connector pins or soldered components on the circuit board in order to prevent possible electrostatic discharge (ESD)
damage to the PCM.
NOTE: In order to prevent internal damage to the PCM, the ignition must be OFF when disconnecting or reconnecting the PCM connector.
1. Install the PCM (4) to the PCM mounting bracket (7) ensuring that the mounting tabs (3) are engaged.
2. Secure the spring latch (2) to the PCM.
3. Connect the PCM connectors (6) to the PCM (4).
Tighten
Tighten the PCM connector end fasteners to 8 N.m (70 lb in).
4. Install the PCM cover (8) to the PCM mounting bracket (7), ensuring the mounting tabs on the PCM mounting bracket are engaged into the
mounting holes in the PCM cover.
5. If a new PCM is being installed, program the EEPROM.
PCM Programming
1. Setup - Ensure that the following conditions have been met:
^
The battery is fully charged.
^
The ignition is ON.
2. Program the PCM using the tatest software matching the vehicle. Refer to Techline terminal/equipment users instructions.
3. If the PCM fails to program, proceed as follows:
^
Ensure that all PCM connections are Ok.
^
Check the Techline terminal/equipment for the latest software version.
^
Attempt to program the PCM. If the PCM still cannot be programmed properly, replace the PCM. The replacement PCM must be
programmed.
4. Perform the PCM Password learn procedure. Refer to DTC P1631 Theft Deterrent Password Incorrect
5. Perform the Idle Learn Procedure. Refer to PCM Idle Learn Procedure.
6. Perform the CKP System Variation Learn Procedure. Refer to CKP System Variation Learn Procedure.
7. Reset the Engine Oil Life monitor. Refer to Engine Oil Life Monitor Reset Procedure.
8. The Functional Check
Functional Check
1. Clear the Diagnostic Trouble Codes (DTCs).
2. Perform the On-Board Diagnostic System Check.
3. Start the engine and idle for one minute.
4. Use the scan tool in order to check for DTCs.
