Express 3/4 Ton Van V8-4.8L VIN V (2003)
Accessory Delay Module: Symptom Related Diagnostic Procedures
A Symptoms - Accessory Delay Module
SYMPTOMS - ACCESSORY DELAY MODULE
IMPORTANT PRELIMINARY CHECKS BEFORE STARTING
1. Perform the Diagnostic System Check - Accessory Delay Module before using the Symptom Tables in order to verify that all of the following are
true:
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There are no DTCs set.
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The control module(s) can communicate via the serial data link. See: Initial Inspection and Diagnostic Overview/Diagnostic System Check -
Accessory Delay Module
2. Review the system operation in order to familiarize yourself with the system functions.
VISUAL/PHYSICAL INSPECTION
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Inspect for aftermarket devices which could affect the operation of the Retained Accessory Power system.
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Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
INTERMITTENT
Faulty electrical connections or wiring may be the cause of intermittent conditions.
SYMPTOM LIST
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
-
Retained Accessory Power (RAP) On After Timeout
-
Retained Accessory Power (RAP) Inoperative
