Headlamps, High Beams Inoperative

PINPOINT TEST 3 - HEADLAMPS, HIGH BEAMS INOPERATIVE

PINPOINT TEST 3		HEADLAMPS, HIGH BEAMS ARE INOPERATIVE
STEP	INSPECTION		ACTION
1	CHECK THE OPERATION OF THE HIGH BEAM INDICATOR Turn on the high beams. Does the high beam indicator illuminate? Are the resistances less than 5 ohms?	Yes	Go to step 3.
1		No	Go to step 2.
2	CHECK THE MULTIFUNCTION SWITCH Carry out the multifunction switch component test for the headlamps. Is the multifunction switch OK?	Yes	Go to step 4.
2		No	Install a new multifunction switch. See MULTI-FUNCTION SWITCH REMOVAL/INSTALLATION . Test the system for normal operation.
3	CHECK CIRCUIT LG/B FOR AN OPEN Disconnect: SJB J-2280a. Disconnect: LH Headlamp 0918-101. Measure the resistance between the SJB J-2280a pin 25, circuit LG/B, harness side and the LH headlamp 0918-101 pin 1 circuit LG/B, harness side. Is the resistance less than 5 ohms?	Yes	Go to step 5.
3		No	Repair the circuit. Test the system for normal operation.
4	CHECK GY/O WIRE FOR AN OPEN Disconnect multifunction switch connector 0918-105. Disconnect: SJB J-2280b. Place the headlamp switch to the headlamps ON position. Place the multifunction switch to the high beam position. Measure the voltage between the SJB J-2280b pin 30, circuit GY/O, harness side and ground. Is the voltage greater than 10 volts?	Yes	Go to step 5.
4		No	Repair the circuit. Test the system for normal operation.
5	CHECK FOR CORRECT SJB OPERATION Key OFF. Disconnect all SJB connectors. Check for: corrosion pushed-out pins Connect all SJB connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present?	Yes	Install a new SJB. Test the system for normal operation.
5		No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. Clear the DTCs. REPEAT the self-test.