Antilock Brakes / Traction Control Systems

C1279; LATERAL/YAW RATE CIRCUIT FAILURE

G307559t28: CHECK THE VOLTAGE SUPPLY TO THE LATERAL/YAW RATE SENSOR
1. Disconnect the yaw/lateral rate sensor electrical connector IP23.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between IP23, pin 03 (R) and GROUND.
^ Is the voltage less than 10 volts?
-> Yes
-> No

G307559t29: CHECK THE YAW/LATERAL RATE SENSOR VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE
1. Turn the ignition switch to the OFF position.
2. Disconnect the ABS/DSC module electrical connector EC30.
3. Measure the resistance between IP23, pin 03 (R) and EC30, pin 07 (R).
^ Is the resistance greater than 5 ohms?
-> Yes
REPAIR the high resistance circuit This circuit includes the splice IPS14. CLEAR the DTC. TEST the system for normal operation.
-> No

G307559t30: CHECK THE YAW/LATERAL RATE SENSOR VOLTAGE SUPPLY CIRCUIT FOR SHORT TO GROUND
1. Measure the resistance between IP23, pin 03 (R) and GROUND.
^ Is the resistance less than 10,000 ohms?
-> Yes
REPAIR the short circuit. This circuit includes the splice IPS14. CLEAR the DTC. TEST the system for normal operation.
-> No
Contact dealer technical support for advice on possible ABS/DSC module failure.

G307559t4: CHECK THE GROUND TO THE YAW/LATERAL RATE SENSOR
1. Measure the resistance between IP23, pin 05 (13K) and GROUND.
^ Is the resistance greater than 5 ohms?
-> Yes
-> No

G307559t67: CHECK THE YAW/LATERAL RATE SENSOR GROUND CIRCUIT FOR HIGH RESISTANCE
1. Turn the ignition switch to the OFF position.
2. Disconnect the ABS/DSC module electrical connector EC30.
3. Measure the resistance between IP23, pin 05 (BK) and EC30, pin 05 (BK).
^ Is the resistance greater than 5 ohms?
-> Yes
REPAIR the high resistance circuit This circuit includes the splice IPS10. CLEAR the DTC. TEST the system for normal operation.
-> No

G307559t32: CHECK THE YAW/LATERAL RATE SENSOR GROUND CIRCUIT FOR SHORT TO B+
1. Measure the voltage between IP23, pin 05 (BK) and GROUND.
^ Is the voltage greater than 3 volts?
-> Yes
REPAIR the short circuit. This circuit includes the splice IPS10. CLEAR the DTC. TEST the system for normal operation.
-> No
Contact dealer technical support for advice on possible ABS/DSC module failure.