Control Unit Input Test/Replacement
- Remove the passenger's console cover (see CENTER CONSOLE REMOVAL/INSTALLATION ).
- Disconnect the 22P connector (A) then remove the bolts (B) from the HandsFreeLink control unit (C).
- Inspect the connector and socket terminals for a good pin fit 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 4.
- Reconnect the connector, 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, go to step 5.TEST CONDITION CHART
Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 13 BLK Under all conditions Measure the voltage to ground: There should be less than 0.1 V. - Poor ground (G503)
- An open in the wire
11 GRN Under all conditions Measure the voltage to ground: There should be battery voltage. - Blown No. 23 (10 A) fuse in the under-hood fuse/relay box
- An open in the wire
1 PUR Ignition switch ACC (I) or ON (II) Measure the voltage to ground: There should be battery voltage. - Blown No. 35 (7.5 A) fuse in the under-dash fuse/relay box
- An open in the wire
- Disconnect the 22P connector again, and make this input test at the connector.
- If the test indicates a problem, find and correct the cause, then recheck the system.
- If the input test proves OK, the HandsFreeLink control unit must be faulty, replace it.TEST CONDITION CHART
Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 14 PNK Under all conditions Check for continuity between No. 14 terminal and the gauge control module 36P connector No. 30 terminal: There should be continuity. An open in the wire Gauge control module 36P connector disconnected Check for continuity to ground: There should be no continuity. Short to ground