| Diagnosis and Testing Refer to Wiring Diagrams Section 417-04, for schematic and connector information. Inspection and Verification - Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart | Electrical | - Fuse(s)
- Bulb(s)
- Switch(es)
- Wiring harness
- Electrical connector(s)
| - If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the concern is not visually evident, verify the symptom and refer to the Symptom Chart.
Symptom Chart Symptom Chart | Symptom | Possible Sources | Action | | The daytime running lamps are inoperative. | * Circuit(s) * Daytime running lamps (DRL) relay * Daytime running lamps resistor * Light switch * Battery junction box (BJB) | * | | The daytime running lamps are on with the ignition switch off. | * Circuit(s) * Daytime running lamps (DRL) relay * Ignition switch * Light switch * Central junction box (CJB) * Battery junction box (BJB) | * | | The high beam indicator is on, high beams at full intensity with headlamps off. | * Circuit(s) * Relay – high beam * Instrument cluster * Multifunction switch * Turn signal switch | * REFER to: Headlamps - Vehicles Built Up To: 08/2001 (417-01 Exterior Lighting, Diagnosis and Testing). | | The parking lamps are inoperative with the daytime running lamps on. | * Fuse * Circuit(s) * Light switch | * | Pinpoint Tests | PINPOINT TEST A : THE DAYTIME RUNNING LAMPS ARE INOPERATIVE | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | A1: CHECK THE LOW BEAMS | | | 1 Ignition switch in position II. | | | 2 Turn the light switch to the LOW BEAM position. | | | 3 Check the low beams. | | | Do the low beams illuminate? Yes No REFER to: Headlamps - Vehicles Built Up To: 08/2001 (417-01 Exterior Lighting, Diagnosis and Testing). | | A2: CHECK THE POWER SUPPLY OF DAYTIME RUNNING LAMPS (DRL) RELAY | | | 1 Ignition switch in position 0. | | | 2 Disconnect Daytime running lamps (DRL) relay C1012. | | | 3 Measure the voltage between daytime running lamps (DRL) relay, socket C1012, pin 3, circuit 30-LE7 (RD) and ground. | | | Is battery voltage indicated? Yes No REPAIR the open circuit between fuse F22 and daytime running lamps (DRL) relay, by using the wiring diagrams. TEST the system for normal operation. | | A3: CHECK THE CONTROL CIRCUIT OF DAYTIME RUNNING LAMPS (DRL) RELAY | | | 1 Ignition switch in position II. | | | 2 Measure the voltage between daytime running lamps (DRL) relay, socket C1012, pin 1 and ground. | | | Is battery voltage indicated? Yes No | | A4: CHECK GROUND CONNECTION OF DAYTIME RUNNING LAMPS (DRL) RELAY | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between daytime running lamps (DRL) relay, socket C1012, pin 2 and ground. | | | Is the resistance less than 2 ohms? Yes No REPAIR the open circuit(s) between daytime running lamps (DRL) relay and ground G1, by using the wiring diagrams. TEST the system for normal operation. | | A5: CHECK THE DAYTIME RUNNING LAMPS (DRL) RELAY | | | 1 Connect a jumper wire at the daytime running lamps (DRL) relay, socket C1012, between pin 3, circuit 30-LE7 (RD) and pin 5, circuit(s) 15S-LE8 (GN/RD), 15S-DC19 (GN/BU). | | | 2 Check the headlamps. | | | Do the daytime running lamps illuminate? Yes INSTALL a new daytime running lamps (DRL) relay. TEST the system for normal operation. No REPAIR the open circuit(s), 15S-LE8 (GN/RD), between daytime running lamps (DRL) relay and splice S120, by using the wiring diagrams. If necessary INSTALL a new daytime running lamps resistor. TEST the system for normal operation. | | A6: CHECK THE LIGHT SWITCH | | | 1 Ignition switch in position 0. | | | 2 Disconnect Light switch C320. | | | 3 Measure the resistance between light switch, connector C320, pin 4, circuit 15S-LE6 (GN/YE), harness side and daytime running lamps (DRL) relay, socket C1012, pin 1, circuit 15S-LE6 (GN/YE). | | | Is the resistance less than 2 ohms? Yes CHECK the light switch according the Component Test:
REFER to: Headlamps - Vehicles Built Up To: 08/2001 (417-01 Exterior Lighting, Diagnosis and Testing).
If necessary INSTALL a new one. TEST the system for normal operation. No REPAIR the open circuit(s) between light switch, connector C320, pin 4 and daytime running lamps (DRL) relay, by using the wiring diagrams. TEST the system for normal operation. | | PINPOINT TEST B : THE DAYTIME RUNNING LAMPS ARE ON WITH THE IGNITION SWITCH OFF | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | B1: CHECK THE DAYTIME RUNNING LAMPS (DRL) RELAY | | | 1 Ignition switch in position 0. | | | 2 Disconnect Daytime running lamps (DRL) relay C1012. | | | 3 Check the headlamps. | | | Do the daytime running lamps illuminate? Yes No | | B2: CHECK THE CONTROL CIRCUIT OF DAYTIME RUNNING LAMPS (DRL) RELAY | | | 1 Measure the voltage between daytime running lamps (DRL) relay, socket C1012, pin 1, circuit 15S-LE6 (GN/YE) and ground. | | | Is battery voltage indicated? Yes No INSTALL a new daytime running lamps (DRL) relay. TEST the system for normal operation. | | B3: CHECK THE CONTROL CIRCUIT OF DAYTIME RUNNING LAMPS (DRL) RELAY FOR SHORT TO POWER | | | 1 Disconnect Light switch C320. | | | 2 Measure the voltage between daytime running lamps (DRL) relay, socket C1012, pin 1, circuit 15S-LE6 (GN/YE) and ground. | | | Is battery voltage indicated? Yes REPAIR the short to power, circuit(s) connected with the daytime running lamps (DRL) relay, socket C1012, pin 1, by using the wiring diagrams. TEST the system for normal operation. No | | B4: CHECK THE LIGHT SWITCH | | | 1 Measure the voltage between light switch, connector C320, pin 8, circuit 15-LE29 (GN/BK) and ground. | | | Is battery voltage indicated? Yes REPAIR the short to power, circuit(s) connected with fuse F61, by using the wiring diagrams. TEST the system for normal operation. No CHECK the light switch according the Component Test:
REFER to: Headlamps - Vehicles Built Up To: 08/2001 (417-01 Exterior Lighting, Diagnosis and Testing).
If necessary INSTALL a new one. TEST the system for normal operation. | | B5: CHECK THE POWER SUPPLY OF DAYTIME RUNNING LAMPS FOR SHORT TO POWER | | | 1 Disconnect Fuse F19 (BJB). | | | 2 Check the headlamps. | | | Do the daytime running lamps illuminate? Yes REPAIR the short to power, circuit(s) 15S-LE8 (GN/RD) and 15S-DC19 (GN/BU), connected with the daytime running lamps (DRL) relay, by using the wiring diagrams. TEST the system for normal operation. No | | B6: CHECK THE POWER SUPPLY OF PARKING LAMPS (DRL) FOR SHORT TO POWER | | | 1 Connect Fuse F19 (BJB). | | | 2 Disconnect Light switch C320. | | | 3 Check the headlamps. | | | Do the daytime running lamps illuminate? Yes REPAIR the short to power, circuit(s) 15S-LE29 (GN/BK), connected with fuse F19, by using the wiring diagrams. TEST the system for normal operation. No REFER to: Parking, Rear and License Lamps - Vehicles Built Up To: 08/2001 (417-01 Exterior Lighting, Diagnosis and Testing).Position and parking lamps. | | PINPOINT TEST C : THE PARKING LAMPS ARE INOPERATIVE WITH THE DAYTIME RUNNING LAMPS ON | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | C1: DETERMINE THE CONDITION | | | 1 Turn the light switch to the PARKING LIGHT position. | | | 2 Check the parking lamps. | | | Do the parking lamps illuminate? Yes No REFER to: Parking, Rear and License Lamps - Vehicles Built Up To: 08/2001 (417-01 Exterior Lighting, Diagnosis and Testing). | | C2: CHECK THE FUSE F19 | | | 1 Ignition switch in position 0. | | | 2 CHECK Fuse F19 (BJB). | | | 3 CHECK the fuse F19 (10 A). | | | Is the fuse OK? Yes No INSTALL a new fuse F19 (10 A). If the fuse blows again, LOCATE and REPAIR the short circuit by using the wiring diagrams. TEST the system for normal operation. | | C3: CHECK THE POWER SUPPLY OF FUSE F19 | | | 1 Connect Fuse F19 (BJB). | | | 2 Ignition switch in position II. | | | 3 Measure the voltage between fuse F19 (BJB) and ground. | | | Is battery voltage indicated? Yes No REPAIR the open circuit(s) 15S-DC19 (GN/BU), between daytime running lamps (DRL) relay and fuse F19, by using the wiring diagrams. TEST the system for normal operation. | | C4: CHECK THE CIRCUIT TO LIGHT SWITCH FOR OPEN | | | 1 Ignition switch in position 0. | | | 2 Disconnect Light switch C320. | | | 3 Disconnect Daytime running lamps (DRL) relay C1012. | | | 4 Connect a jumper wire at the daytime running lamps (DRL) relay, socket C1012, between pin 3, circuit 30-LE7 (RD) and pin 5, circuit(s) 15S-LE8 (GN/RD), 15S-DC19 (GN/BU). | | | 5 Ignition switch in position II. | | | 6 Measure the voltage between light switch, connector C320, pin 15, circuit 15S-LE29 (GN/BK), harness side and ground. | | | Is battery voltage indicated? Yes CHECK the light switch according to the Component Test:
REFER to: Headlamps - Vehicles Built Up To: 08/2001 (417-01 Exterior Lighting, Diagnosis and Testing).
If necessary INSTALL a new one. TEST the system for normal operation. No REPAIR the open circuit(s), 15S-LE29 (GN/BK), between fuse F19 (BJB) and light switch, by using the wiring diagrams. TEST the system for normal operation. | |
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