Keyless Control Unit Test
NOTE:
If after all testing procedures are completed system is not functioning properly, substitute keyless control unit with known good unit and retest.
Disconnect keyless control unit harness connector. On Colt Vista, Expo LRV and Summit Wagon, keyless control unit is located behind left quarter panel, above wheelwell. On Expo, keyless control unit is located behind right quarter panel, above wheelwell. Using DVOM, measure voltage between selected terminal and vehicle ground. See KEYLESS CONTROL UNIT VOLTAGE SPECIFICATIONS . See Fig 1 . If voltage is not within specification, inspect and repair circuit as needed. See appropriate chassis wiring diagram in the WIRING DIAGRAMS section.
KEYLESS CONTROL UNIT VOLTAGE SPECIFICATIONS
| Terminal (Wire Color) | Function/Description | Terminal Voltage | ||
|---|---|---|---|---|
| 1 (Red/White) | Key Reminder Switch | Battery Volts W/Key Installed, 0 Volts With Key Removed | ||
| 2 (Red/Green) | Door Switch | 5 Volts W/Door Open | ||
| 6 (Brown/Blue) | Door Lock Actuator (Left Side) | Lock-5 Volts (Pulse Output) (1) , Unlocked: 0 Volts | ||
| 9 (Blue) | Control Unit Power Supply (Switched) | Battery Voltage W/Ignition Switch In ACC Position | ||
| 10 (Red/Yellow) | Control Unit Power Supply (Constant) | Battery Voltage | ||
| 11 (Red) | Dome Light | Battery Voltage W/Dome Light Sw. In ON Position | ||
| 12 (Black/Blue) | Door Lock Relays 1 & 2 | 0 Volts Actuated, Battery Voltage When Not Actuated | ||
| 13 (Black/Green) | Door Lock Relays 1 & 2 | 0 Volts Actuated, Battery Voltage When Not Actuated | ||
| 14 (Red/Green) | Door Lock Relay 2 | 0 Volts Actuated, Battery Voltage When Not Actuated | ||
| 20 (Black) | Ground | 0 Volts | ||
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