Sierra Classic 3500 4WD V8-8.1L (2007)
7. Loosen the PCM electrical connector bolts (2).
NOTE:
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Refer to PCM and ESD Notice.
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In order to prevent internal damage to the PCM, the ignition must be OFF when disconnecting or reconnecting the PCM connector.
8. Disconnect the PCM electrical connectors.
9. Release the spring latch from the PCM.
10. Release the PCM mounting tabs from the PCM.
11. Remove the PCM.
INSTALLATION PROCEDURE
1. Install the PCM.Ensure that the mounting tabs are engaged.
2. Secure the spring latch to the PCM.
3. Connect the PCM electrical connectors.
NOTE: Refer to Fastener Notice.
4. Tighten the PCM electrical connector bolts (2).
Tighten the bolts to 8 N.m (71 lb in).
