DTC 12: Vehicle Speed Sensor
- Check vehicle speed sensor. See VEHICLE SPEED SENSOR TEST under COMPONENT TESTS. Replace sensor as necessary. If sensor is okay, go to next step.
- Disconnect cruise control ECU harness connector. Turn ignition on. Check voltage between ground and ECU harness side connector terminal No. 10 (White/Blue wire). If 4.5 or more volts are present, go to next step. If less than 4.5 volts are present, check circuit between ECU and sensor. See WIRING DIAGRAMS . Repair as necessary.
- Check circuit between sensor and ECU. If circuit is okay, replace cruise control ECU.