DTC 5

DTC 5: VEHICLE SPEED SENSOR OPEN CIRCUIT OR SHORT

Circuit Description
Output speed information is provided to the control unit by the vehicle speed sensor. The vehicle speed sensor produces a pulsing AC voltage. The AC voltage level and number of pulses increases as the speed of the vehicle increases. The control unit then converts the pulsing voltage to vehicle speed.

Diagnostic Aids
- Inspect the wiring for poor electrical connections between the control unit 22-way connector and the speed sensor connectors. Look for possible bent, backed out, deformed, or damaged terminals. Check for weak terminal tension as well.
Also check for a chafed wire that could short to bare metal or other wiring. Inspect for a broken wire inside the insulation.
- When diagnosing for a possible intermittent short or open condition, move the wiring harness while observing test equipment for a change.

DTC 5 VEHICLE SPEED SENSOR OPEN CIRCUIT OR SHORT





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