C1243–G SENSOR NOT INITIALIZED

For a complete wiring diagram Refer to Section 8W.

When Monitored:
Once after ignition on.
Set Condition:
If the stored zero point calibration value of the longitudinal acceleration sensor is invalid.

Possible Causes

DYNAMICS SENSOR NOT CALIBRATED

DYNAMICS SENSOR

ANTI-LOCK BRAKES MODULE

Diagnostic Test

1. PERFORM ECU INITIALIZATION

Turn the ignition on.
With the scan tool, erase ABS DTCs.
Cycle the ignition switch.

WARNING: To avoid personal injury or death, check brake capability is available before road testing.

Perform ECU initialization with drive test refer to ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

NOTE: The ECU Initialization process must include driving the vehicle into a 90 degrees turn.

Park the vehicle.

Go To 2

2. VERIFY IF DTC IS STILL ACTIVE

Cycle the ignition switch.

WARNING: To avoid personal injury or death, check brake capability is available before road testing.

Test drive the vehicle by turning the vehicle left or right in a curving manner at a velocity between 10 and 25 km/h (6 and 15 mph).
Park the vehicle.
With the scan tool, read ABS DTCs.

Does this DTC reset?

Yes

NOTE: Vehicles without a Dynamics Sensor replace Anti-Lock Brake Module.
Replace the Dynamics Sensor or Anti-Lock Brake Module in accordance with the Service Information.

Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

No

Perform the ABS Intermittent Condition diagnostic procedure in this Section.

Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to 5 - BRAKES - DIAGNOSIS AND TESTING)