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Test E: The Instrument Cluster Does Not Respond To The Scan Tool

PINPOINT TEST E: THE INSTRUMENT CLUSTER DOES NOT RESPOND TO THE SCAN TOOL


E1-E2:






E2-E4:






E5-E6:






Normal Operation
The instrument cluster communicates with the scan tool through the high speed controller area network (HS-CAN). Circuits 4-EC7 (GY/RD) (HS-CAN +) and 5-EC7 (BU/RD) (HS-CAN -) provide the network connection to the instrument cluster. The instrument cluster shares the HS-CAN with the powertrain control module (PCM), the restraints control module (RCM), the occupant classification sensor module, and the anti-lock brake system (ABS) module. Voltage and ground for the instrument cluster is provided by redundant circuits. Voltage is supplied by circuits 15-GG14 (GN/RD), 29-GG14 (OG) and 75-GG14 (YE/BU). Ground is supplied by circuit 91-GG14 (BK/OG).

Possible Causes
- Fuse
- Circuit 4-EC7 (GY/RD) open (HS-CAN +)
- Circuit 5-EC7 (BU/RD) open (HS-CAN -)
- Circuit 15-GG14 (GN/RD) open
- Circuit 29-GG14 (OG) open
- Circuit 75-GG14 (YE/BU) open
- Circuit 91-GG14 (BK/OG) open
- Instrument cluster
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