Circuitry Tests

Using test lamp, check following terminals of regulator connector. See  Figure .  Verify each terminal is installed in correct location.

Switch OFF-Key OFF  - Should have NO light at all terminals.

• If light at 14, 10 or 5, check control switch.
• If light at 13, reverse pink and blue wire connection at brake light switch.
• If light at 7, wire is connected to wrong fuse. Connect to accessory fuse.

Switch OFF - Key ON  - Should light at 7.

• If no light at 7, check accessory fuse and connections.

Switch ON - Key ON  - Light at 5, 7 and 14.

• If no light at 5 and 14, check control switch.
• If no light at 7, check accessory fuse and connection.

Switch ON - Key OFF  - Light at 5 and 14.

• If no light, check control switch.

Switch in RES - Key OFF  - Light at 5, 10 and 14.

• If light at 10 does NOT go out when RES released, replace control switch.

SET button depressed - Key OFF  - Should light at 5 and 10, go out at 10 when SET released.

• If not, verify wire positions.
• If correct, check control switch.

Brake pedal depressed  - Should light at 13.

• If no light, check for loose connector at brake switch, blown fuse or defective brake switch.