Pinpoint Test A: The Daytime Running Lamps (DRL) Are Inoperative
- A1 CHECK THE LOW BEAM HEADLAMPS NOTE: Make sure the multifunction switch is in the LOW BEAM position.
- Key in ON position.
- Place the headlamp switch in the HEADLAMPS ON position.
- Do the low beams illuminate?
Yes : For early build vehicles, GO to A2.
For late build vehicles, GO to A8.
No : REFER to EXTERIOR LIGHTING to continue diagnosis of the headlamps.
- A2 CHECK CIRCUIT 30-LE7 (RD/BU) FOR AN OPEN
- Place the headlamp switch in the OFF position.
- Key in OFF position.
- Disconnect: DRL Relay C1000.
- Measure the voltage between the DRL relay C1000-3, circuit 30-LE7 (RD/BU), harness side and ground.
- Is the voltage greater than 10 volts?
Yes : GO to A3.
No : VERIFY the BJB fuse 22 (20A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.
- A3 CHECK THE DRL RELAY (EARLY BUILD)
- Carry out the DRL relay component test. Refer to MINI ISO RELAY for component testing.
- Is the relay OK?
Yes : GO to A4.
No : INSTALL a new DRL relay. TEST the system for normal operation.
- A4 CHECK THE DRL RESISTOR WIRE
- Connect a fused (20A) jumper wire between the DRL relay C1000-3, circuit 30-LE7 (RD/BU), harness side and the DRL relay C1000-5, circuit 15S-LE8 (GN/RD), harness side.
- Do the headlamps illuminate?
Yes : REMOVE the jumper wire. GO to A6.
No : REMOVE the jumper wire. GO to A5.
- A5 CHECK THE LOW BEAM RELAY (EARLY BUILD)
- Disconnect: Low Beam Relay C1049.
- Carry out the low beam relay component test. Refer to MINI ISO RELAY for component testing.
- Is the low beam relay OK?
Yes : REPAIR circuit 15S-LE8 (GN/RD) (DRL resistor wire). TEST the system for normal operation.
No : INSTALL a new low beam relay. TEST the system for normal operation.
- A6 CHECK CIRCUIT 91-LE6 (BK/RD) FOR AN OPEN
- Measure the resistance between the DRL relay C1000-2, circuit 91-LE6 (BK/RD), harness side and ground.
- Is the resistance less than 5 ohms?
Yes : GO to A7.
No : REPAIR the circuit. TEST the system for normal operation.
- A7 CHECK CIRCUIT 15S-LE6 (GN/YE) FOR AN OPEN (EARLY BUILD)
- Connect: DRL Relay C1000.
- Disconnect: Headlamp Switch C205.
- Connect a fused (5A) jumper wire between the headlamp switch C205-8, circuit 15-LE29 (GN/BK), harness side and the headlamp switch C205-4, circuit 15S-LE6 (GN/YE), harness side.
- Key in ON position.
- Do the headlamps illuminate with reduced intensity?
Yes : INSTALL a new headlamp switch. REFER to EXTERIOR LIGHTING . TEST the system for normal operation.
No : REPAIR the circuit. TEST the system for normal operation.
- A8 CHECK THE DRL RELAY (LATE BUILD) NOTE: If there are multiple inoperative systems with the ignition switch in the RUN position, refer to STEERING COLUMN SWITCHES to continue diagnosis.
- Place the headlamp switch in the OFF position.
- Key in OFF position.
- Disconnect: DRL Relay C2073.
- Carry out the DRL relay component test. Refer to MINI ISO RELAY for component testing.
- Is the relay OK?
Yes : GO to A9.
No : INSTALL a new DRL relay. TEST the system for normal operation.
- A9 CHECK THE DRL RELAY COIL GROUND CIRCUIT
- Measure the resistance between the DRL relay C2073-85, circuit 31-DA1 (BK), harness side and ground.
- Is the resistance less than 5 ohms?
Yes : GO to A11.
No : GO to A10.
- A10 CHECK CIRCUIT 31-DA1 (BK) FOR AN OPEN
- Disconnect: CJB C270c.
- Measure the resistance between the CJB C270c-4, circuit 31-DA1 (BK), harness side and ground.
- Is the resistance less than 5 ohms?
Yes : INSTALL a new CJB. TEST the system for normal operation.
No : REPAIR the circuit. TEST the system for normal operation.
- A11 CHECK FOR SUPPLY VOLTAGE TO THE DRL RELAY
- Key in ON position.
- Measure the voltage between the DRL relay C2073-30, harness side and ground.
- Is the voltage greater than 10 volts?
Yes : GO to A12.
No : VERIFY the CJB fuse 44 (15A) is OK. If OK, INSTALL a new CJB. TEST the system for normal operation.
- A12 CHECK FOR VOLTAGE FROM THE HEADLAMP SWITCH
- Measure the voltage between the DRL relay C2073-86, circuit 15S-LE6 (GN/YE), harness side and ground.
- Is the voltage greater than 10 volts?
Yes : GO to A15.
No : GO to A13.
- A13 CHECK THE HEADLAMP SWITCH
- Key in OFF position.
- Connect: DRL Relay C2073.
- Disconnect: Headlamp Switch C205.
- Connect a fused (5A) jumper wire between the headlamp switch C205-8, circuit 15-LE29 (GN/BK), harness side and the headlamp switch C205-4, circuit 15S-LE6 (GN/YE), harness side.
- Key in ON position.
- Do the headlamps illuminate?
Yes : INSTALL a new headlamp switch. REFER to EXTERIOR LIGHTING . TEST the system for normal operation.
No : LEAVE the jumper wire connected. GO to A14.
- A14 CHECK CIRCUIT 15S-LE6 (GN/YE) FOR AN OPEN
- Key in OFF position.
- Disconnect: CJB
- Measure the voltage between the CJB C270b-7, circuit 15S-LE6 (GN/YE), harness side and ground.
- Key in ON position.
- Is the voltage greater than 10 volts?
Yes : INSTALL a new CJB. TEST the system for normal operation.
No : REPAIR the circuit. TEST the system for normal operation.
- A15 CHECK THE LOW BEAM RELAY (LATE BUILD)
- Key in OFF position.
- Disconnect: Low Beam Relay C1049.
- Carry out the low beam relay component test. Refer to MINI ISO RELAY for component testing.
- Is the low beam relay OK?
Yes : GO to A16.
No : INSTALL a new low beam relay. TEST the system for normal operation.
- A16 CHECK CIRCUIT 15S-LE8 (GN/RD) FOR AN OPEN (LATE BUILD)
- Disconnect: CJB C270b.
- Measure the resistance between the CJB C270b-4, circuit 15S-LE8 (GN/RD), harness side and the low beam relay C1049-4, circuit 15S-LE8 (GN/RD), harness side.
- Is the resistance less than 5 ohms?
Yes : INSTALL a new CJB. TEST the system for normal operation.
No : REPAIR the circuit. TEST the system for normal operation.