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Express 3/4 Ton Van V8-4.8L VIN V (2003)

Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory Delay Module > Component Information > Testing and Inspection > Initial Inspection and Diagnostic Overview

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Accessory Delay Module: Initial Inspection and Diagnostic Overview

Diagnostic Starting Point - Accessory Delay Module

DIAGNOSTIC STARTING POINT - ACCESSORY DELAY MODULE

Begin the system diagnosis with the Diagnostic System Check - Accessory Delay Module. The Diagnostic System Check will provide the following
information:

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Class 2 communication status

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"U" codes which indicate module communication or circuit failure

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"B" codes which indicate a possible body function or circuit failure

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The status of any "U" or "B" codes

Diagnostic System Check - Accessory Delay Module

DIAGNOSTIC SYSTEM CHECK - ACCESSORY DELAY MODULE

TEST DESCRIPTION

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Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory Delay Module > Component Information > Testing and Inspection > Initial Inspection and Diagnostic Overview

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