Vehicle Body Style Unknown

Test 1 - 2:

Test 3 - 5:

SYMPTOM
VEHICLE BODY STYLE UNKNOWN

WHEN MONITORED
When the ignition is on, the ACM monitors the PCI Bus for the VIN message containing the vehicle body style from the Powertrain Control Module. The PCM transmits the VIN message every 14 seconds.

SET CONDITION
With ignition on, If the ACM does not receive 2 consecutive matching (vehicle Body Style) VIN messages on the bus the code will set.

POSSIBLE CAUSES
- PCM, PCI communication failure
- Vehicle body style unknown
- ACM, vehicle body style unknown
- Stored code or intermittent condition
- Active code present