W/Harness Inspection

P0501 Vehicle Speed Sensor \'A\' Range/Performance

Inspection/Repair - W/Harness Inspection

Signal Circuit Inspection

[With ABS]
1. Check for short to ground in signal circuit
(1) Ignition "OFF".
(2) Disconnect PCM and ABS Control Module connectors.
(3) Measure resistance between Vehicle speed input terminal of PCM harness connector and chassis ground.

Specification :Infinite




(4) Is resistance within the specification?





2. Check for short to battery in signal circuit
(1) Ignition "ON" & Engine"OFF".
(2) Measure voltage between Vehicle speed input terminal of PCM harness connector and chassis ground.

Specification :Approx. 0 V




(3) Is voltage within the specification?





3. Check for open in signal circuit
(1) Ignition "OFF".
(2) Measure resistance between terminals 53 of the PCM harness connector and 14 of the ABS Control Module harness connector.

Specification :Approx. 0 Ohms

(3) Is resistance within the specification?





[Without ABS system]
1. Check for short to ground in Signal circuit
(1) Ignition "OFF".
(2) Measure resistance between Vehicle speed input terminal of PCM harness connector and Vehicle speed output terminal of ABS/ESP Control Module harness connector.

Specification :Infinite




(3) Is resistance within the specification?





2. Check for short to battery in signal circuit
(1) Ignition "ON" & Engine"OFF".
(2) Measure voltage between Vehicle speed input terminal of PCM harness connector and chassis ground.

Specification :Approx. 0 V




(3) Is voltage within the specification?





3. Check for open in signal circuit
(1) Ignition "OFF".
(2) Measure resistance between Vehicle speed input terminal of PCM harness connector and Vehicle speed output terminal of ABS/ESP Control Module harness connector.

Specification :Approx. 0 Ohms




(3) Is resistance within the specification?