C1242-G SENSOR INPUT SIGNAL PERFORMANCE

For a complete wiring diagram, refer to the Wiring Information.

When Monitored:
Continuously, with ignition on, until vehicle speed exceeds 20 km/h (12.4 m.p.h.) for the first time, but not if the sensor voltage is out of range,

Or, during diagnostic mode.

Or, if the monitoring was inhibited by a corresponding diagnostics command.

Or, if the vehicle speed has exceeded 20 km/h (12.4 m.p.h.) during the actual ignition cycle.

Or, if at least one over spinning wheel is detected.

Or, if one of the control functions is active.
Set Condition:
If the measured acceleration signal is higher than 0.8 g and longer than the specified detection time.

Possible Causes
DYNAMICS SENSOR INSTALLATION
DYNAMICS SENSOR
ANTI-LOCK BRAKE MODULE

1. VERIFY DTC IS ACTIVE

1.	Turn the ignition on.

2.	With the scan tool, read and record ABS DTCs.

3.	With the scan tool, read and record Environmental Data to help identify the conditions in which the DTC was set.

4.	With the scan tool, erase ABS DTCs.

5.	Cycle the ignition switch.

WARNING:

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

6.	Test drive the vehicle by turning the vehicle left or right in a curving manner at a velocity between 10 and 20 km/h (6 and 12 mph).

7.	Park the vehicle.

8.	With the scan tool, read ABS DTCs.

Does this DTC reset?

Yes

2. CHECK THE DYNAMICS SENSOR INSTALLATION

NOTE: Dynamics Sensor installation and mounting bolt torque is crucial for proper operation.

1.	Turn the ignition off.

2.	Check the Dynamics Sensor for damaged, modified, and bent mounting brackets.

3.	Check the Dynamics Sensor mounting bolts for a loose or over tightened condition.

Were any problems found?

Yes

Replace the Dynamics Sensor in accordance with the Service Information.
Perform ABS VERIFICATION TEST (Refer to 28 - DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Standard Procedure).