Check for short to ground in signal circuit
Ignition "OFF".
Disconnect PCM and ESP Control Module connectors.
Measure resistance between Vehicle speed input terminal of PCM harness connector and chassis ground.
Specification : Infinite
Is resistance within the specification?
 | ▶ Go to next step as below. |
 | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
Check for short to battery in signal circuit
Ignition "ON" & Engine"OFF".
Measure voltage between Vehicle speed input terminal of PCM harness connector and chassis ground.
Specification : Approx. 0V
Is voltage within the specification?
| ▶ Go to next step as below. |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
Check for open in signal circuit
Ignition "OFF".
Measure resistance between Vehicle speed input terminal of PCM harness connector and Vehicle speed output terminal of ESP Control Module harness connector.
Specification : Approx. 0Ω
Is resistance within the specification?
| ▶ Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
