Power Circuits

Circuit 139
Function: This circuit provides power to the turn/hazard flasher when turn operation is activated.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good, go to the next item indicated on the Complaint-Condition Chart.

Circuit 39X
Function: This circuit provides a signal (battery voltage) to instrument panel cluster to determine which type of DRL is being used on the vehicle (turn lamps - SC2, high beams - SC1 ,SL,SW).
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 592A
Function: This circuit grounds the DRL relay when the DRL mode is active.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 18C
Function: This circuit provides power to the coil of left relay #1 when the turn switch is in the left turn position. This causes the relay to energize so that the left front turn signal is connected to the left turn circuit 18Z and can operate normally.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 18E
Function: This circuit provides power to the coil of left relay #2 when the turn switch is in the left turn position. This causes the relay to energize connecting the pulsing turn flasher circuit 16A to the left turn circuit 18Y to operate the left front and rear turn signals normally.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 19C
Function: This circuit provides power to the coil of right relay #2 when the turn switch is in the right turn position. This causes the relay to energize connecting the pulsing turn flasher circuit 16B to the right turn circuit 19Y to operate the right front and rear turn signals normally.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 19E
Function: This circuit provides power to the coil of right relay #1 when the turn switch is in the right turn position. This causes the relay to energize so that the right front turn signal is connected to the right turn circuit 19Z and can operate normally.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 16A
Function: With turn switch in left turn this circuit provides pulsing power from the flasher to the left front and rear turn signals.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 16B
Function: With turn switch in right turn this circuit provides pulsing power from the flasher to the right front and rear turn signals.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 593A
Function: This circuit provides constant power to the right front turn signal during DRL operation (with turn switch in Off or Left and hazard switch Off).
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 593B
Function: This circuit provides constant power to the left front turn signal during DRL operation (with turn switch in Off or Right and hazard switch Off).
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 1134
Function: This circuit grounds the brake telltale and is an input to the DRL module (disables DRL function).
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 1201H
Function: This circuit provides a ground signal to the DRL module to turn Off the DRL function when the low beam headlamps are On.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 1200E
Function: This circuit provides a ground signal to the DRL module to turn On the high beam telltale when the flash-to-pass or the high beams have been activated.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Circuit 1200C
Function: This circuit provides a ground for the high beam headlamps when the headlamp switch is in the flash-to-pass or high beams ON position.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.