C1243-G SENSOR NOT INITIALIZED

For a complete wiring diagram Refer to the Wiring Information.

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

1. PERFORM ECU INITIALIZATION

1.	Turn the ignition on.

2.	With the scan tool, erase ABS DTCs.

3.	Cycle the ignition switch.

WARNING:

To avoid possible serious or fatal injury, check brake capability is available before road testing.

4.	Perform ECU initialization with drive test refer to ABS VERIFICATION TEST (Refer to 28 - DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Standard Procedure).

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

5.	Park the vehicle.

2. VERIFY IF DTC IS STILL ACTIVE

1.	Cycle the ignition switch.

WARNING:

To avoid possible serious or fatal injury, check brake capability is available before road testing.

2.	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).

3.	Park the vehicle.

4.	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 28 - DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Standard Procedure).