Gauge Control Module Input Test
NOTE:
Check the No. 22 (120 A), No. 23 (50 A), No. 15 (40 A) fuse in the under-hood fuse/relay box before troubleshooting.
- Before troubleshooting the multiplex integrated control system, troubleshoot the B-CAN System Diagnosis Test mode A (see Troubleshooting - B-CAN System Diagnosis Test Mode A ).
- Turn the ignition switch OFF.
- Remove the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).
- Disconnect connectors from the gauge control module.
- Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 6.NOTE: All connectors are wire side of female terminals.
- Reconnect connector A and C to the gauge control module, and make these input tests at the connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, replace the gauge control module.TEST CONDITION (3 OF 6)
Cavity Wire Test Condition Test: Desired result Possible cause if result is not obtained C10 BLK Under all conditions Check for voltage to ground:
There should be less than 1 V.- Poor ground (G402)
- An open in the wire
A19 WHT/RED Under all conditions Check for voltage to ground:
There should be battery voltage.- Blown No. 7 (7.5 A) fuse in the under-dash fuse/relay box
- An open in the wire
A20 YEL Ignition switch ON (II) Check for voltage to ground:
There should be battery voltage.- Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box
- An open in the wire
B6 BRN/YEL Under all conditions Check for continuity between the B6 terminal and the under-dash fuse/relay box connector N (45P) No. 28 terminal:
There should be continuity.An open in the wire