Immobilizer-Keyless Control Unit Input Test
- Remove the steering column covers (see GLOVE BOX STRIKER REPLACEMENT ).
- Disconnect the 7P connector (A) from the immobilizer-keyless control 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 4.
- 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 5.
WIRE SPECIFICATIONSCavity Wire Terminal name Test condition Test: Desired result Possible cause if desired result is not obtained 4 GRN B-CAN Disconnect the gauge control module 32P connector Check for continuity between the terminal No. 4 and the gauge control module 32P connector terminal No. 17: There should be continuity. An open in the wire Disconnect driver's under-dash fuse/relay box connector Q(16P) Check for continuity between the terminal No. 4 and driver's under-dash fuse/relay box connector Q(16P) terminal No. 3: There should be continuity. An open in the wire 3 GRN IMOCD (S-NET) Disconnect PCM connector A (44P) (see HOW TO TROUBLESHOOT CIRCUITS AT THE PCM CONNECTORS ) Measure the voltage to ground: There should be about 5 V. - A short to ground in the wire
- An open in the wire
Disconnect the battery negative terminal Measure the resistance between the terminal No. 3 and body ground: There should be more than 50 kΩ - Faulty imoes unit
- Faulty under-dash fuse/relay box
- An open in the wire
Disconnect PCM connector A (44P) (see HOW TO TROUBLESHOOT CIRCUITS AT THE PCM CONNECTORS ) Check for continuity between the terminal No. 3 and PCM connector A (44P) terminal No. 44: There should be continuity. An open in the wire - Reconnect the connector to the immobilizer-keyless control unit, 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 immobilizer-keyless control unit (see IMMOBILIZER-KEYLESS CONTROL UNIT REPLACEMENT ).
NOTE: After replacing the immobilizer-keyless control unit, do the immobilizer registration (see IMMOBILIZER KEY REGISTRATION ).WIRE SPECIFICATIONSCavity Wire Terminal name Test condition Test: Desired result Possible cause if desired result is not obtained 1 PNK +B BACK UP Under all conditions Measure the voltage to ground: There should be battery voltage. - Blown No. 1 (15 A) fuse in the under-dash fuse/relay box
- An open in the wire
2 RED IG1 Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. - Blown No. 20 (15 A) fuse in the under-dash fuse/relay box
- An open in the wire
6 GRY KEY SW Ignition key inserted into the ignition switch Measure the voltage to ground: There should be less than 0.2 V. - Poor ground (G502)
- Faulty ignition key switch
- An open in the wire
7 BRN LG Under all conditions Measure the voltage to ground: There should be less than 0.2 V. - Poor ground(G101)
- An open in the wire
5 BLU K-LINE Under all conditions Measure the voltage to ground: There should be 9-12V. - Bad control unit on the K-line
- K-line short to ground