Instrument Panel Cluster Diagnostic System Check

Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). If scan tool powers up, go to next step. If scan tool does not power up, see appropriate BODY CONTROL MODULES article.
Turn ignition switch to ON position. Using scan tool, attempt to establish communications with the following modules:
- Automatic Transfer Case (ATC)
- Body Control Module (BCM)
- Electronic Brake Control Module (EBCM)
- Instrument Panel Cluster (IPC)
- Powertrain Control Module (PCM)
- Sensing and Diagnostic Module (SDM)
If scan tool establishes communications with specified modules, go to next step. If scan tool is unable to establish communications with specified modules, see appropriate BODY CONTROL MODULES article.
Select DISPLAY DTCs function for the following modules:
- ATC
- BCM
- EBCM
- IPC
- PCM
- SDM
If scan tool displays DTC for the specified modules, go to next step. If no DTCs are retrieved, repair by symptom. See SYMPTOM INDEX table under SYSTEM TESTS.
If scan tool displays DTCs which begin with a "U" or DTC B1000, see appropriate BODY CONTROL MODULES article. If DTC P0562, P0563, P0621 or P0622 are retrieved, see ENGINE ELECTRICAL DIAGNOSTIC SYSTEM CHECK in appropriate BODY CONTROL MODULES article. If other DTCs are retrieved, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS table.

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC ⁽¹⁾

Description

Instrument Panel Cluster Ignition 0 Circuit Low

Key In Ignition Circuit Malfunction

Fuel Sending Unit Fault

Fuel Level Signal Low

Fuel Level Signal High

Vehicle Speed Out Of Range

Engine Speed Out Of Range

⁽¹⁾	DTCs listed in this table are only for testing procedures covered in this article. For a complete list of DTCs, see appropriate BODY CONTROL MODULES article.