Pinpoint Test B: The Low Beams Are Inoperative
- B1 CHECK CIRCUIT 30-DA6 (RD) FOR VOLTAGE
- Key in OFF position.
- Disconnect: Low Beam Relay C1049.
- If not equipped with daytime running lamps (DRL), measure the voltage between the low beam relay C1049-3, circuit 30-DA6 (RD), harness side and ground.
- If equipped with DRL, measure the voltage between the low beam relay C1049-5, circuit 30-DA6 (RD), harness side and ground.
- Is the voltage greater than 10 volts?
- Yes : GO to B2.
- No : REPAIR or INSTALL a new BJB. TEST the system for normal operation.
- B2 CHECK CIRCUIT 91-DA3 (BK/OG) FOR AN OPEN
- Measure the resistance between the low beam relay C1049-2, circuit 91-DA3 (BK/OG), harness side and ground.
- Is the resistance less than 5 ohms?
- Yes : GO to B3.
- No : REPAIR or INSTALL a new BJB. TEST the system for normal operation.
- B3 CHECK CIRCUIT 15S-LE19 (GN/BU) FOR VOLTAGE
- Key in ON position.
- Place the headlamp switch in the headlamps ON position.
- Measure the voltage between the low beam relay C1049-1, circuit 15S-LE19 (GN/BU), harness side and ground.
- Is the voltage greater than 10 volts?
NOTE: Make sure the headlamp switch is in the low beam position.- Yes : INSTALL a new low beam relay. TEST the system for normal operation.
- No : GO to B4.
- B4 BYPASS THE HEADLAMP SWITCH
- Key in OFF position.
- Connect: Low Beam Relay C1049.
- Disconnect: Headlamp Switch C205.
- Key in ON position.
- Connect a fused (7.5A) jumper wire between the headlamp switch C205-6, circuit 15S-LE14 (GN/RD), harness side and the headlamp switch C205-8, circuit 15-LE29 (GN/BK), harness side.
- Do the headlamps illuminate?
- Yes : INSTALL a new headlamp switch. REFER to HEADLAMP SWITCH . TEST the system for normal operation.
- No : GO to B5.
- B5 CHECK THE VOLTAGE AT THE MULTIFUNCTION SWITCH
- Key in OFF position.
- Disconnect: Multifunction Switch C202.
- Key in ON position.
- Measure the voltage between multifunction switch C202-8, circuit 15S-LE14 (GN/RD), harness side and ground.
- Is the voltage greater than 10 volts?
- Yes : GO to B6.
- No : REPAIR circuit 15S-LE14 (GN/RD). TEST the system for normal operation.
- B6 BYPASS THE MULTIFUNCTION SWITCH
- Key in OFF position.
- Connect a 7.5A fused jumper wire between the multifunction switch C202-8, circuit 15S-LE14 (GN/RD), harness side and the multifunction switch C202-9, circuit 15S-LE19 (GN/BU), harness side.
- Key in ON position.
- Do the headlamps illuminate?
- Yes : INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES . TEST the system for normal operation.
- No : REPAIR circuit 15S-LE19 (GN/BU). TEST the system for normal operation.