Test C: The Instrument Cluster Does Not Respond To The Diagnostic Tool
PINPOINT TEST C: THE INSTRUMENT CLUSTER DOES NOT RESPOND TO THE DIAGNOSTIC TOOLC1-C2:
Normal Operation
The instrument cluster communicates with the diagnostic tool through the controller area network (CAN), circuits 4-EC7B (GY/RD) and 5-EC7B (BU/RD). Check circuits 4-EC7B (GY/RD) and 5-EC7B (BU/RD) between the instrument cluster C2220 and the data link connector (DLC) C251. The total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms there is an open in one of the high speed CAN circuits, damage to the DLC C251, damage to the instrument cluster C2220, or a problem in an in-line connector.
Possible Causes
- CAN circuit 4-EC7B (GY/RD) open
- CAN circuit 5-EC7B (BU/RD) open
- instrument cluster C2220
- instrument cluster
- DLC C251