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:

E3-E4:

E4-E5:

Normal Operation
The instrument cluster communicates with the scan tool through the high speed controller area network (HS-CAN), circuits 1847 (WH/OG) and 1848 (PK/OG). The instrument cluster shares the HS-CAN with the anti-lock brake system (ABS) module and the powertrain control module (PCM). Power and ground for the instrument cluster is provided by redundant circuits. Circuits 385 (WH/RD), 640 (RD/YE) and 1002 (BK/PK) provide voltage, and circuits 651 (BK/YE) and 57 (BK) provide ground.

Possible Causes
- Fuse
- Circuit 57 (BK) open
- Circuit 385 (WH/RD) open
- Circuit 640 (RD/YE) open
- Circuit 651 (BK/YE) open
- Circuit 1002 (BK/PK) open
- Circuit 1847 (WH/OG) open (HS-CAN +)
- Circuit 1848 (PK/OG) open (HS-CAN -)
- Circuit 1827 (WH/LG) open (MS-CAN +)
- Circuit 1828 (PK/LG) open (MS-CAN -)
- Instrument cluster