Indicator Input Test
Indicator Input Test1. Remove the gauge assembly, and disconnect gauge connector B (22P).
2. Inspect the connector and connector terminals to be sure they are making good contact.
3. If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
4. Shift to the P position, and check for continuity between terminal B10 (BLU/BLK) and ground. There should be continuity in the P position and no continuity in any other position.
5. Turn the ignition switch ON (II), and shift to the R position.
6. Check for voltage between terminal B9 (WHT) and ground. There should be 0 V in the R position, and about 9 V in any other position.
7. Shift to the N position, and check for continuity between terminal B8 (BLK/RED) and ground. There should be continuity in the N position and no continuity in any other position.
8. Check the voltage between terminal B17 (YEL) and ground. There should be battery voltage while the ignition switch is turned ON (II).
9. Check for continuity between terminal B16 (BLK) and ground. There should be continuity under all conditions.
10. Turn the ignition switch OFF.
11. Connect gauge connector B (22P).
12. Turn the ignition switch ON (II).
13. Shift to the P or N position.
14. Check the voltage between terminal B20 (LT GRN) and ground. There should be 0 V in the P and N positions, and about 5 V in any other position.
15. If the test results are different, check for a faulty transmission range switch, open wires, a blown fuse, and a poor ground.
16. If all input tests prove OK, but the indicator is faulty, replace the gauge.