Gauge Control Module Input Test
NOTE:
Check the No. 22 (120 A), No. 23 (60 A), No. 15(40 A) fuse in the under-hood fuse/relay box before testing.
- Before troubleshooting the gauge control module, troubleshoot the multiplex integrated control system first, using B-CAN System Diagnosis Test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
- Turn the ignition switch to LOCK (0).
- 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 connectors A and C to the gauge control module, and do these input tests at the following 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 (see GAUGE CONTROL MODULE REPLACEMENT ).
WIRE TEST CONDITION REFERENCE CHART
| Cavity | Wire | Test Condition | Test: Desired result | Possible cause if desired result is not obtained |
|---|---|---|---|---|
| C10 | BLK | In all ignition switch positions | Measure the voltage to ground: There should be less than 0.2 V. |
|
| A19 | WHT/RED | Under all conditions | Measure the voltage to ground: There should be battery voltage. |
|
| A20 | YEL | Ignition switch ON (II) | Measure the voltage to ground: There should be battery voltage. |
|
| B6 | BRN/YEL | Under all conditions | Check for continuity between terminal B6 and under-dash fuse/relay box connector N (45P) terminal No. 28: There should be continuity. |
An open or high resistance in the wire |