Component Tests and General Diagnostics

1. Connect the EEC-IV 60-Pin Breakout Box to the anti-lock brake control module C111.
2. Disconnect the suspect anti-lock brake sensor.
3. Check the harness for short to ground.

1. Note: Use 88 Digital Multimeter with the minimum resistance hold feature enabled for this test.

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. Note: Connect jumper securely to the suspect sensor connector, wire harness side.

Connect a jumper between the two pins on the suspect sensor connector, wire harness side.








2. Note: Use 88 Digital Multimeter with the maximum resistance hold feature enabled for this test.

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 an open circuit detected between pins, repair the circuit(s) for an open circuit.
5. Check suspect sensor electrical connector.

1. Note: Use 88 Digital Multimeter with the maximum resistance hold feature enabled for this test.

Monitor the resistance between suspect anti-lock brake sensor pins (component side) while wiggling the electrical connector.

2. If the resistance is above 2,200 ohms, replace the anti-lock brake sensor.

3. Note: Use 88 Digital Multimeter with the minimum resistance hold feature enabled for this test.

Monitor the resistance between suspect anti-lock brake sensor pins (component side) while wiggling the electrical connector.

4. If the resistance is below 1,710 ohms, replace the anti-lock brake sensor.

5. Note: Use 88 Digital Multimeter with the minimum resistance hold feature enabled for this test.

Monitor the resistance between an anti-lock brake sensor pin (component side) and ground on the highest resistance scale of the meter while wiggling the electrical connector.
6. If the meter shows anything but open circuit, replace the anti-lock brake sensor.