1. Before testing the entry light control functions, troubleshoot the multiplex integrated control system test mode A.

Multiplex Integrated Control Unit

1. Remove the left kick panel.

1. Disconnect the under-dash fuse/relay box connectors.
   NOTE: All connectors are wire side of female terminals.

1. Inspect the connector 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 .

1. With the connectors still disconnected, make these input tests at the connector.
   - If any test indicates a problem, find and correct the cause, the recheck the system.
   - If all the input tests prove OK, go to Step 6 .

   Cavity | Wire | Test condition | Test: Desired result | Possible cause if result is not obtained
   --- | --- | --- | --- | ---
   P1 (P14) | BRN | Under all conditions | Check for continuity to ground: There should be continuity. |
   - Poor ground (G502)
   - An open in the wire
   E9 | BLK | Under all conditions | Check for continuity to ground: There should be continuity. |
   - Poor ground (G601)
   - An open in the wire
   P7 (P8) | ORN | Under all conditions | Attach to ground: Ignition key light should come on. |
   - Blown No. 13 (20 A) fuse in the under-hood fuse/relay box
   - Faulty ignition keylight (LED)
   - An open in the wire
   I4 | GRN/RED | Ceiling light switch in middle position | Attach to ground: Ceiling light(s) should come on. |
   - Blown No. 6 (7.5 A) fuse in the under-dash fuse/relay box
   - Blown bulb
   - Faulty ceiling light
   - An open in the wire

   ( ): RHD type

1. Reconnect the connectors to the under-dash fuse/relay box, and make these input tests at the appropriate connectors on the under-dash fuse/relay box.
   - 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 7 .

   Cavity | Wire | Test condition | Test: Desired result | Possible cause if result is not obtained
   --- | --- | --- | --- | ---
   E15 | GRN | Driver's door open | Check for voltage to ground: There should be 1 V or less. |
   - Faulty driver's door switch
   - An open in the wire
   Driver's door closed | Check for voltage to ground: There should be 5 V or more. |
   - Faulty driver's door switch
   - Short to ground
   H12 | LT GRN/RED | Front passenger's door open | Check for voltage to ground: There should be 1 V or less. |
   - Faulty front passenger's door switch
   - An open in the wire
   Front passenger's door closed | Check for voltage to ground: There should be 5 V or more. |
   - Faulty front passenger's door switch
   - Short to ground
   E14 | GRN/YEL | Left or (right) rear door open | Check for voltage to ground: There should be 1 V or less. |
   - Faulty left rear door switch
   - An open in the wire
   Left or (right) rear door closed | Check for voltage to ground: There should be 5 V or more. |
   - Faulty left rear door switch
   - Short to ground
   H13 | GRN/WHT | Right or (left) rear door open | Check for voltage to ground: There should be 1 V or less. |
   - Faulty right rear door switch
   - An open in the wire
   Right or (left) rear door closed | Check for voltage to ground: There should be 5 V or more. |
   - Faulty right rear door switch
   - Short to ground
   P13 (P2) | RED/WHT | Ignition key inserted into the ignition switch | Check for voltage to ground: There should be 1 V or less. |
   - Poor ground (G501)
   - Faulty ignition key switch
   - An open in the wire
   Ignition key removed from the ignition switch | Check for voltage to ground: There should be 5 V or more. |
   - Faulty ignition key switch
   - Short to ground

   ( ): RHD type