Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
 
Vehicle » Brakes and Traction Control » Antilock Brakes / Traction Control Systems » Testing and Inspection » Component Tests and General Diagnostics » Sensor Failure  
 
 
  Sensor Failure  
 
  1. Connect EEC-IV 60-Pin Breakout Box to the ABS control with the ABS Adapter Cable.
  2. Disconnect the suspect anti-lock brake sensor.
  3. Check the harness for shorts.

  

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, and between EEC-IV 60-Pin Breakout Box pins as follows:

2 Drive over rough roads at various speeds.
3 If there is continuity between either circuit and ground, or between the two circuits, repair the circuit(s) for a short.
  1. Check the harness for an open circuit.
1 NOTE: Connect the jumper securely to the suspect sensor connector.

Connect a jumper between the two pins on the suspect sensor connector.

  

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 lynx 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.
  1. Check suspect sensor pigtail.
1 NOTE: Use 88 Digital Multimeter with the maximum resistance hold feature enabled for this test.

Monitor the resistance between suspect sensor terminals while wiggling the pigtail.

2 If the resistance does not remain between 2,400 and 2,800 ohms, replace the sensor.
3 NOTE: Use 88 Digital Multimeter with the minimum resistance hold feature enabled for this test.

Monitor the resistance between a sensor terminal, and ground on the highest resistance scale of the meter while wiggling the pigtail.

4 If the meter shows anything but an open circuit, replace the sensor.