AC Inverter Unit Input Test
- Do the battery terminal disconnection procedure (see USING THE GR8 BATTERY DIAGNOSTIC STATION ).
- Remove the driver's console side trim (see CENTER CONSOLE REMOVAL/INSTALLATION ).
- Disconnect the 12P connector (A) from the AC inverter unit (B).
- 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 5.
- With the connector still disconnected, do the following input tests:
- 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 6.
Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 5 BLU Under all conditions Check for continuity between terminal No. 5 and power outlet 3P connector terminal No. 3: There should be continuity. An open or high resistance in the wire 12 PNK Under all conditions Check for continuity between terminal No. 12 and power outlet 3P connector terminal No. 1: There should be continuity. An open or high resistance in the wire - Do the battery terminal reconnection procedure (see RECONNECTION ).
- Reconnect the connector, and do the following input tests:
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, replace the AC inverter unit, then go to step 8.
Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 6 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. - Poor ground (G503) or an open in the ground wire
- An open or high resistance in the wire
1 GRN Under all conditions Measure the voltage to ground: There should be battery voltage. - Blown No. 15 (20 A) fuse in the main under-hood fuse box
- Faulty main under-hood fuse box
- An open or high resistance in the wire
3 PNK Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. - Blown No. 30 (10 A) fuse in the under-dash fuse/relay box
- Faulty under-dash fuse/relay box
- Faulty IG2 cut relay
- An open or high resistance in the wire
- After replacing the AC inverter unit, do the steering column position memorization (see STEERING COLUMN POSITION MEMORIZATION ), and enter the anti-theft codes for the audio system and the navigation system (if equipped), and set the clock (without navigation).