No Left Front Impact Sensor Communication

Test 1 - 5:

Test 6 - 8:

Test 9:

SYMPTOM
NO LEFT FRONT IMPACT SENSOR COMMUNICATION

TEST NOTE
This symptom is diagnosed using the test LEFT FRONT IMPACT SENSOR INTERNAL 1.

WHEN MONITORED
The ACM continuously communicates with the Left Front Impact Sensor over the sensor signal circuit. The sensor communication and onboard diagnostics are powered by the ACM signal.

SET CONDITION
The code will set, if the ACM and Left Front Sensor do not establish and maintain valid data communications.

POSSIBLE CAUSES
- Signal circuit shorted to battery
- Signal circuit short to ground
- Left sensor circuits shorted together
- Ground circuit open
- Signal circuit open
- ACM, left front impact sensor
- Repair is complete
- Stored code or intermittent condition
- Active code present