## Keyless/Power Door Lock System

#### Control Unit Input Test - With Super Locking (cont'd)

22-233

6. Reconnect all connector to the under-dash fuse/relay box and make sure 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, the multiplex control unit must be faulty, replace the under-dash fuse/relay box assembly.

Cavity | Wire | Test condition | Test: Desired result | Possible cause if result is not obtained
P18 | RED | Tailgate open | Check for voltage to ground: There should be 1 V or less. |

- Poor ground (G553)
- Faulty tailgate latch switch
- An open in the wire

Tailgate closed | Check for voltage to ground: There should be 5 V or more.
X5 | RED/WHT | Ignition key inserted into the ignition switch | Check for voltage to ground: There should be 1 V or less. |

- Poor ground (G401)
- 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.
Q3 | 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.
Q4 | 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.
Q2 | GRN/WHT | Left (right) rear door open | Check for voltage to ground: There should be 1 V or less. |

- Faulty left (right) rear door switch
- An open in the wire

Left (right) rear door closed | Check for voltage to ground: There should be 5 V or more.
Y4 | BRN/WHT | Front passenger's or left rear or right rear door lock knob switch unlocked | Check for voltage to ground: There should be 1 V or less. |

- Faulty front passenger's or left rear or right rear door lock knob switch
- Poor ground (G502, G551)
- An open in the wire

X6 | WHT/RED | Driver's door key cylinder switch lock | Check for voltage to ground: There should be 1 V or less. |

- Faulty driver's door key cylinder switch
- Poor ground (G501)
- An open in the wire

Driver's door key cylinder switch in neutral | Check for voltage to ground: There should be 5 V or more.
Y13 | WHT | Driver's door key cylinder switch unlocked | Check for voltage to ground: There should be 1 V or less.
Driver's door key cylinder switch in neutral | Check for voltage to ground: There should be 5 V or more.
X2 | LT BLU | Front passenger's door key cylinder switch lock | Check for voltage to ground: There should be 1 V or less. |

- Faulty front passenger's door key cylinder switch
- Poor ground (G502)
- An open in the wire

Front passenger's door key cylinder switch in neutral | Check for voltage to ground: There should be 5 V or more.
Y11 | GRY | Tailgate key cylinder switch lock | Check for voltage to ground: There should be 1 V or less. |

- Faulty tailgate key cylinder switch
- Poor ground (G553)
- An open in the wire

Tailgate key cylinder switch in neutral | Check for voltage to ground: There should be 5 V or more.