Ford F150 Pickup. Manual — part 355
Sensor
1. Connect EEC-IV 60-Pin Breakout Box to the EHCU with ABS Adapter Cable.
2. Disconnect the suspect anti-lock brake sensor.
3. Check the harness for short to ground.
Fig. 42: Identifying Anti Lock Brake Sensor Circuits
Courtesy of FORD MOTOR CO.
1. Monitor the resistance between EEC-IV 60-Pin Breakout Box pins and ground as follows:
2. Drive over rough roads at various speeds.
3. If there is continuity between either circuit and ground, repair the circuit for a short to ground.
4. Check harness for open circuit.
1. Connect a jumper between the two pins on the suspect sensor connector.
NOTE:
Use 88 Digital Multimeter with the minimum resistance hold feature
enabled for this test.
NOTE:
Connect jumper securely to the suspect sensor connector.
NOTE:
Use 88 Digital Multimeter with the maximum resistance hold feature
enabled for this test.
2003 Ford Pickup F150
2003 BRAKES Anti-Lock Control - 4-Wheel - F150 Pickup
Fig. 43: Identifying Anti Lock Brake Sensor Circuits
Courtesy of FORD MOTOR CO.
2. Monitor the resistance between EEC-IV 60-Pin Breakout Box pins as follows:
3. Drive over rough roads at various speeds.
4. If there is open circuit detected between pins, repair the circuit(s) for an open circuit.
5. Check suspect sensor electrical connector.
NOTE:
Use 88 Digital Multimeter with the maximum resistance hold feature
enabled for this test.
2003 Ford Pickup F150
2003 BRAKES Anti-Lock Control - 4-Wheel - F150 Pickup
Fig. 44: Sensor Resistance Specifications
Courtesy of FORD MOTOR CO.
1. Monitor the resistance between suspect anti-lock brake sensor terminals while wiggling the
electrical connector:
2. If the resistance is above specifications, install a new anti-lock brake sensor.
Fig. 45: Sensor Resistance Specifications (1 Of 2)
Courtesy of FORD MOTOR CO.
NOTE:
Use 88 Digital Multimeter with the minimum resistance hold feature
enabled for this test.
2003 Ford Pickup F150
2003 BRAKES Anti-Lock Control - 4-Wheel - F150 Pickup
Fig. 46: Sensor Resistance Specifications (2 Of 2)
Courtesy of FORD MOTOR CO.
3. Monitor the resistance between suspect anti-lock brake sensor pins (component side) while
wiggling the electrical connector:
4. If the resistance is below specifications, install a new anti-lock brake sensor.
REMOVAL & INSTALLATION
HYDRAULIC CONTROL UNIT (HCU)
Removal & Installation
1. Disconnect the battery negative cable. For additional information, refer to BATTERY, MOUNTING
AND CABLES - F150 PICKUP .
2. Disconnect the anti-lock brake control module electrical connector.
CAUTION: Electronic modules are sensitive to static electrical charges. If
exposed to these charges, damage may result.
2003 Ford Pickup F150
2003 BRAKES Anti-Lock Control - 4-Wheel - F150 Pickup
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