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C1243






C1243 - G Sensor Not Initialized

For a complete wiring diagram, refer to.

When Monitored: Once after ignition on.

Set Condition: If the stored zero point calibration value of the longitudinal acceleration sensor is invalid.






Test Step 1 - PERFORM ECU INITIALIZATION

Turn the ignition on.

With the scan tool, erase ABS DTCs.

Cycle the ignition switch.


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

Perform ECU initialization with drive test. Perform ABS Verification Test. Refer to => Non-DTC Based Diagnostics. ABS Verification Test

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

Park the vehicle.

Go to Test Step 2 => [ Test Step 2 - VERIFY IF DTC IS STILL ACTIVE ]

Test Step 2 - VERIFY IF DTC IS STILL ACTIVE

Cycle the ignition switch.


To avoid possible serious or fatal injury, 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

Replace the Dynamics Sensor or Anti-Lock Brake Module.

Perform ABS Verification Test. Refer to => Non-DTC
Based Diagnostics. ABS Verification Test

Vehicles without a Dynamics Sensor replace Anti-Lock Brake Module.

No

Perform the ABS Intermittent Condition Test. Refer to => Non-DTC Based Diagnostics. ABS Intermittent Condition Test