What wire color and circuit number is the lock signal on a 1995 Bronco anti-theft system?

The lock circuit is 117, a pink/black (PK/BK) wire, which shows 12V when locking and 0V when unlocking. It runs from the Anti-Theft Controller Module through C238, splices S303/S304, and connectors C228M/F and C213M/F to the door lock motors.

What circuit does the unlock signal use?

The unlock signal is circuit 118, pink/orange (PK/O), from the module's Unlock Doors pin 7 through connector C237, splice S306, and C228F/C228M to the right door lock motor and Remote/Keyless Entry system.

How does the ignition cylinder tamper sensor trigger the alarm?

If an attempt is made to remove the ignition cylinder, the sensor's resistance changes and causes the anti-theft module to trigger the alarm. The sensor connects to module pin 10 via circuit 936 (DG/W) and is grounded through circuit 875 (BK/LB) at G200.

Which connectors serve the left and right door lock motors?

The left door lock motor uses connector C502 (location 151-7 D1) and the right door lock motor uses C602 (location 151-7 A10). Both motors are bi-directional, locking or unlocking depending on door lock switch position.

Where can I find connector and ground location descriptions referenced on this page?

The diagram directs you to Section 152 for components, connectors, splice, and ground descriptions and locations; grounds are shown on page 10-5, and the keyless entry circuits continue on page 111-2.

Home/ Registry/ Ford/ Bronco/ 1987-1991/ “Eddie Bauer”/ Photo supermotors.net/registry/media/898403

1995 Ford Bronco Anti-Theft Wiring Diagram 112-3 - Door Lock & Tamper Sensor

1995 Bronco anti-theft system wiring diagram page 112-3

‹ ›

Wiring diagram for the 1995 Bronco anti-theft system showing door lock motors and ignition cylinder tamper sensor circuits.

AI caption December 2011 · Photo 927 of 1799

This is page 112-3 of the 1995 Ford Bronco factory wiring diagram set (EVTM), covering the Anti-Theft system. The diagram shows the Anti-Theft Controller Module (grid reference 151-3 A4) with its Lock Doors (pin 9), Ignition Cylinder Tamper Input (pin 10), and Unlock Doors (pin 7) circuits. Circuit 117 (PK/BK wire) carries the lock signal through splices S303 and S304 and connectors C238, C228M/F, C213M/F to the left door lock motor (via C502) and right door lock motor (via C602); circuit 118 (PK/O) carries the unlock signal via C237, C228F/M and splice S306, with both circuits tying into the Remote/Keyless Entry system (page 111-2). Circuit 936 (DG/W) connects the module to the ignition cylinder tamper sensor in the speed control/horn switch assembly on the steering column (page 31-1), grounded through circuit 875 (BK/LB), splice S216, and ground G200 (see page 10-5). Notes explain that the module senses a 12V signal when doors are locked/unlocked by key or keyless entry, that the door lock motors are bi-directional, and that a resistance change in the tamper sensor triggers the alarm if the ignition cylinder is removed. Readers can trace wire colors, circuit numbers, connector IDs, and voltage states (0V/12V lock-unlock logic) for anti-theft diagnostics.

This document covers 1995, which may differ from this 1990 Ford Bronco.

Is this accurate? Sign in to help verify it.

Frequently asked questions

What wire color and circuit number is the lock signal on a 1995 Bronco anti-theft system?: The lock circuit is 117, a pink/black (PK/BK) wire, which shows 12V when locking and 0V when unlocking. It runs from the Anti-Theft Controller Module through C238, splices S303/S304, and connectors C228M/F and C213M/F to the door lock motors.
What circuit does the unlock signal use?: The unlock signal is circuit 118, pink/orange (PK/O), from the module's Unlock Doors pin 7 through connector C237, splice S306, and C228F/C228M to the right door lock motor and Remote/Keyless Entry system.
How does the ignition cylinder tamper sensor trigger the alarm?: If an attempt is made to remove the ignition cylinder, the sensor's resistance changes and causes the anti-theft module to trigger the alarm. The sensor connects to module pin 10 via circuit 936 (DG/W) and is grounded through circuit 875 (BK/LB) at G200.
Which connectors serve the left and right door lock motors?: The left door lock motor uses connector C502 (location 151-7 D1) and the right door lock motor uses C602 (location 151-7 A10). Both motors are bi-directional, locking or unlocking depending on door lock switch position.
Where can I find connector and ground location descriptions referenced on this page?: The diagram directs you to Section 152 for components, connectors, splice, and ground descriptions and locations; grounds are shown on page 10-5, and the keyless entry circuits continue on page 111-2.