VIN Range: G00442->G45703

PINPOINT TEST G307559p10: C1286,C1287; PEDAL FORCE SWITCH CIRCUIT FAILURE

G307559t31: CHECK THE PEDAL FORCE SWITCH FUNCTION NORMALLY CLOSED
1. Disconnect the brake pedal force switch electrical connector ECO3.
2. With the brake pedal in the rest position, measure the resistance between pins 02 and 05 of the switch.

^ Is the resistance greater than 5 ohms?

-> Yes Contact dealer technical support for advice on possible active booster failure. CLEAR the DTC. TEST the system for normal operation.

-> No GO to Pinpoint Test G307559t68.

G307559t68: CHECK THE PEDAL FORCE SWITCH FUNCTION NORMALLY OPEN
1. With the brake pedal depressed, measure the resistance between pins 03 and 05 of the switch.

^ Is the resistance greater than 5 ohms?

-> Yes Contact dealer technical support for advice on possible active booster failure. CLEAR the DTC. TEST the system for normal operation.

-> No GO to Pinpoint Test G307559t38.

G307559t38: CHECK THE PEDAL FORCE SWITCH SUPPLY VOLTAGE
1. Turn the ignition switch to the ON position.
2. Measure the voltage between ECO3, pin 05 (WG) and GROUND.

^ Is the voltage less than 10 volts?

-> Yes GO to Pinpoint Test G307559t39.

-> No GO to Pinpoint Test G307559t41.

G307559t39: CHECK THE PEDAL FORCE SWITCH 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 ECO3, pin 05 (WG) and EC30, pin 28 (WG).

^ Is the resistance greater than 5 ohms?

-> Yes GO to Pinpoint Test G307559t40.

-> No REPAIR the high resistance circuit. For additional information, refer to Vehicle/Diagrams. CLEAR the DTC. TEST the system for normal operation.

G307559t40: CHECK THE PEDAL FORCE SWITCH SUPPLY CIRCUIT FOR SHORT TO GROUND
1. Measure the resistance between ECO3, pin 5 (WG) and GROUND.

^ Is the resistance less than 10,000 ohms?

-> Yes REPAIR the short circuit. For additional information, refer to Vehicle/Diagrams. CLEAR the DTC. TEST the system for normal operation.

-> No Contact dealer technical support for advice on possible ABS/DSC module failure.

G307559t41: CHECK THE BRAKE PEDAL FORCE SWITCH SIGNAL (NC) CIRCUIT FOR HIGH RESISTANCE
1. Measure the resistance between ECO3, pin 02 (YR) and EC30, pin 30 (YR).

^ Is the resistance greater than 5 ohms?

-> Yes REPAIR the high resistance circuit. For additional information, refer to Vehicle/Diagrams. CLEAR the DTC. TEST the system for normal operation.

-> No GO to Pinpoint Test G307559t42.

G307559t42: CHECK THE BRAKE PEDAL FORCE SWITCH SIGNAL CIRCUIT (NC) FOR SHORT TO GROUND
1. Measure the resistance between ECO3, pin 02 (YR) and GROUND.

^ Is the resistance less than 10,000 ohms?

-> Yes REPAIR the short circuit. For additional information, refer to Vehicle/Diagrams. CLEAR the DTC. TEST the system for normal operation.

-> No GO to Pinpoint Test G307559t43.

G307559t43: CHECK THE BRAKE PEDAL FORCE SWITCH SIGNAL CIRCUIT (NO) FOR HIGH RESISTANCE
1. Measure the resistance between ECO3, pin 01 (YU) and EC30, pin 31 (YU).

^ Is the resistance greater than 5 ohms?

-> Yes REPAIR the high resistance circuit. For additional information, refer to Vehicle/Diagrams. CLEAR the DTC. TEST the system for normal operation.

-> No GO to Pinpoint Test G307559t44.

G307559t44: CHECK THE BRAKE PEDAL FORCE SWITCH SIGNAL CIRCUIT (NO) FOR SHORT TO GROUND
1. Measure the resistance between ECO3, pin 02 (YR) and GROUND.

^ Is the resistance less than 10,000 ohms?

-> Yes REPAIR the short circuit. For additional information, refer to Vehicle/Diagrams. CLEAR the DTC. TEST the system for normal operation.

-> No Contact dealer technical support for advice on possible active booster failure. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, contact dealer technical support for advice on possible ABS/DSC module failure.