1995 Ford Bronco Starting System Wiring Diagram (20-2) - Starter Relay & TR Sensor
Starting system schematic showing 32 R/LB start circuit through the TR sensor (allows start in Park/Neutral), starter relay, and starter motor solenoid grounds.
This is page 20-2 of the 1995 Ford Bronco electrical/vacuum troubleshooting manual, showing the second half of the Starting System wiring diagram (continued from page 20-1 at connector C103M). It covers both manual transmission and automatic (E4OD or 4R70W) transmission variants. In the automatic branch, circuit 32 R/LB (red/light blue) passes through connector C1012 to the Transmission Range (TR) Sensor, which allows the driver to start the vehicle only in PARK or NEUTRAL; the sensor is detailed on page 93-2 with switch testing on page 149-10 (component location 151-6 F2). On manual transmission vehicles, the circuit passes straight through connectors C103F. Circuit 32 R/LB then feeds the Starter Relay (location 151-1 D1), which controls current flow to the starter motor during engine starting. When energized, the relay sends 12V through wire R and connector C116 to the Starter Motor/Solenoid (location 151-1 A1). The battery feeds the relay via red (R) cables and grounds through black (BK) cables to G101 (body ground) and G103 (engine ground). Grid location references (e.g., 151-2 F6) point to component location views elsewhere in the manual.
This document covers 1995, which may differ from this 1990 Ford Bronco.
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Frequently asked questions
- What wire color and circuit number feed the starter relay on a 1995 Bronco?
- Circuit 32, a red/light blue (R/LB) wire, runs from connector C103M to the starter relay, carrying 12V when the transmission is in Park or Neutral.
- What does the Transmission Range (TR) sensor do in the 1995 Bronco starting circuit?
- It allows the driver to start the vehicle only in the PARK or NEUTRAL position, passing 12V (START) through connector C1012 on E4OD or 4R70W automatic transmissions.
- Where can I find TR sensor switch testing in the 1995 Bronco manual?
- The diagram references page 93-2 for the TR sensor and page 149-10 for switch testing; its component location is 151-6 F2.
- What does the starter relay do and where is it located in the manual's component views?
- The starter relay controls current flow to the starter motor during engine starting; its component location reference is 151-1 D1. When energized it sends 12V through connector C116 to the starter motor/solenoid (151-1 A1).
- What are the ground points for the battery in the 1995 Bronco starting system?
- The battery grounds through black (BK) cables to G101 (body ground) and G103 (engine ground).
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