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Fog Lamps - Vehicles Built From: 02-2005, Convertible > < Parking, Rear and License Plate Lamps - Vehicles Built From: 02-2005, Convertible

Streetka 2003.5 (01.2003-07.2005)

Exterior Lighting - Fog Lamps—Vehicles Built Up To: 02/2005, Convertible Streetka 2003.5 (01/2003-07/2005)
Diagnosis and Testing

Refer to Wiring Diagrams Section 417-01, for schematic and connector information.

Special Tool(s)

Terminal Probe Kit

29-011A

Inspection and Checking

  1. Verify the customer concern.
  1. Visually inspect for obvious signs of electrical damage.

Visual Inspection

Electrical
  • Fuse(s)
  • Lamp(s)
  • Connector(s)
  • Switches
  • Relay(s)
  • Wiring harness
  1. Resolve any obvious causes or concerns found during the visual inspection before carrying out any further tests.
  1. If the concern is not visually evident, refer to the Symptom Chart.

Symptom Chart

Symptom Chart

Symptom Possible Sources Action
Rear fog lamps or front fog lamps inoperative
*
Fuse
*
Circuit(s)
*
Heater control module
*
Front fog lamp switch
*
Front fog lamp relay
*
Rear fog lamp diode
*
GO to Pinpoint Test A.
Individual fog lamps inoperative
*
Circuit(s)
*
Left/right-hand front fog lamp
*
Left/right-hand rear fog lamp
*
GO to Pinpoint Test B.
Rear fog lamps or front fog lamps are permanently lit
*
Circuit(s)
*
Front fog lamp switch
*
Front fog lamp relay
*
Heater control module
*
GO to Pinpoint Test C.
Dipped beam illuminates when the front fog lamps are switched on (light switch in parking light position)
*
Rear fog lamp diode
*
RENEW the rear fog lamp diode CHECK the operation of the system.

System Checks

NOTE:
NOTE:Use a digital multimeter for all electrical measurements.

PINPOINT TEST A : REAR FOG LAMPS OR FRONT FOG LAMPS INOPERATIVE
TEST CONDITIONS DETAILS/RESULTS/ACTIONS
A1: DETERMINE THE FAULT CONDITION
1
Ignition switch in position II.
2
SWITCH ON the dipped beam.
3
SWITCH ON the front and rear fog lamps.
4
CHECK fog lamps.

Are the front fog lamps inoperative?
Yes
GO to A2.
No
Rear fog lamps inoperative: GO to A10.
A2: CHECK FUSE F27 (CJB)
1
Ignition switch in position 0.
2
Disconnect Fuse F27 (20 A) (CJB).
3
CHECK fuse F27 (20 A) (CJB).

Is the fuse OK.?
Yes
GO to A3.
No
RENEW fuse F27 (20 A) and CHECK the operation of the system. If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK the operation of the system.
A3: CHECK THE VOLTAGE AT FUSE F27 (CJB)
1
Connect Fuse F27 (20 A) (CJB).
2
Ignition switch in position II.
3
Measure the voltage between fuse F27 (20 A) and ground.

Does the meter display battery voltage?
Yes
GO to A4.
No
LOCATE AND RECTIFY the break in the voltage supply of fuse F27 (CJB) with the aid of the wiring diagrams. CHECK the operation of the system.
A4: CHECK THE VOLTAGE AT THE FRONT FOG LAMP SWITCH
1
Ignition switch in position 0.
2
Disconnect front fog lamp switch from connector C532.
3
Ignition switch in position II.
4
SWITCH ON the dipped beam.

5
Measure the voltage between the front fog lamp switch, connector C532, pin 2, circuit 29S-LD10 (OG/GN), wiring harness side and ground.

Does the meter display battery voltage?
Yes
GO to A5.
No
LOCATE and RECTIFY the break in the circuit between the front fog lamp switch and soldered connection S21 using the Wiring Diagrams. CHECK the operation of the system.
A5: CHECK FRONT FOG LAMP SWITCH
1
Ignition switch in position 0.
2
SWITCH OFF the dipped beam.

3
Using a fused bridging cable (10 A) at the front fog lamp switch, connect between connector C532, pin 2, circuit 29S-LD10 (OG/GN) and pin 1, circuit 29S-LD8 (OG), wiring harness side.
4
Ignition switch in position II.
5
SWITCH ON the dipped beam.
6
CHECK the front fog lamps.

Do the front fog lamps illuminate?
Yes
RENEW the front fog lamp switch. CHECK the operation of the system.
No
GO to A6.
A6: CHECK CIRCUIT 29S-LD8 (OG) FOR OPEN CIRCUIT (CONTROL CIRCUIT)
1
Ignition switch in position 0.
2
SWITCH OFF the dipped beam.
3
Disconnect front fog lamp relay from socket C178.

4
Measure the resistance between the front fog lamp switch, connector C532, pin 1, circuit 29S-LD8 (OG), wiring harness side and the front fog lamp relay, socket C178, pin 2.

Is the resistance less than 2 Ohm?
Yes
GO to A7.
No
LOCATE and RECTIFY the break in the circuit between the front fog lamp switch and the front fog lamp relay with the aid of the Wiring Diagrams. CHECK the operation of the system.
A7: CHECK GROUND CONNECTION AT FRONT FOG LAMP RELAY CIRCUIT 31-LD8 (BK)FOR OPEN CIRCUIT (CONTROL CIRCUIT)

1
Measure the resistance between the front fog lamp relay, socket C178, pin 1, circuit 31-LD8 (BK), wiring harness side and ground.

Is the resistance less than 2 Ohm?
Yes
GO to A8.
No
LOCATE and RECTIFY the break in the circuit between the front fog lamp relay and soldered connection S145 using the wiring diagrams. CHECK the operation of the system.
A8: CHECK THE VOLTAGE SUPPLY TO FRONT FOG LAMP RELAY CIRCUIT 14-LD9 (VT/BK)FOR OPEN CIRCUIT (CONTROL CIRCUIT)

1
Measure the voltage between the front fog lamp relay, socket C178, pin 3, circuit 14-LD9 (VT/BK), wiring harness side and ground.

Does the meter display battery voltage?
Yes
GO to A9.
No
LOCATE and RECTIFY the break in the circuit between the front fog lamp relay and fuse F27 (CJB) with the aid of the Wiring Diagrams. CHECK the operation of the system.
A9: CHECK FRONT FOG LAMP RELAY

1
Connect a fused jumper wire (20 A) to the front fog lamp relay, socket C178, pin 3, circuit 14-LD9 (VT/BK) and pin 5, circuit 14S-LD1 (VT/YE) and circuit 14S-LD21 (VT/YE).
2
Ignition switch in position II.
3
CHECK the front fog lamps.

Do the front fog lamps illuminate?
Yes
RENEW the front fog lamp relay. CHECK the operation of the system.
No
LOCATE and RECTIFY the break in circuit 14S-LD1 (VT/YE), between the front fog lamp relay and soldered connection S82 using the Wiring Diagrams. CHECK the operation of the system.
A10: CHECK FUSE F29 (CJB)
1
Ignition switch in position 0.
2
Disconnect Fuse F29 (10 A) (CJB).
3
CHECK fuse F29 (10 A) (CJB).

Is the fuse OK.?
Yes
GO to A11.
No
RENEW fuse F29 (10 A) and CHECK the operation of the system. If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK the operation of the system.
A11: CHECK THE VOLTAGE AT FUSE F29 (CJB)
1
Connect Fuse F29 (10 A) (CJB).
2
Ignition switch in position II.
3
SWITCH ON the dipped beam.
4
Measure the voltage between fuse F29 (10 A) and ground.

Does the meter display battery voltage?
Yes
GO to A12.
No
LOCATE and RECTIFY the break in the voltage supply to fuse F29 (CJB) using the Wiring Diagrams. CHECK the operation of the system.
A12: CHECK THE VOLTAGE AT THE HEATER CONTROL MODULE
1
Ignition switch in position 0.
2
Disconnect heater control module from connector C41.
3
Ignition switch in position II.

4
Measure the voltage between the heater control module, connector C41, pin 1, circuit 14S-LD16B (VT), wiring harness side and ground.

Does the meter display battery voltage?
Yes
GO to A15.
No
GO to A13.
A13: CHECK CIRCUIT 14S-LD22 (VT/WH) FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect rear fog lamp diode from connector C185.
3
Ignition switch in position II.

4
Measure the voltage between the rear fog lamp diode, connector C185, pin 1, circuit 14S-LD22 (VT/WH), wiring harness side and ground.

Does the meter display battery voltage?
Yes
GO to A14.
No
LOCATE and RECTIFY the break in the circuit between the rear fog lamp diode and fuse F29 (CJB) with the aid of the Wiring Diagrams. CHECK the operation of the system.
A14: CHECK CIRCUIT 14S-LD16(A/B) (VT) FOR OPEN CIRCUIT
1
Ignition switch in position 0.

2
Measure the resistance between the rear fog lamp diode, connector C185, pin 2, circuit 14S-LD16A (VT), wiring harness side and heater control module, connector C41, pin 1, circuit 14S-LD16B (VT).

Is the resistance less than 2 Ohm?
Yes
RENEW the rear fog lamp diode. CHECK the operation of the system.
No
LOCATE and REPAIR the open circuit between the rear fog lamp diode and the heater control module using the Wiring Diagrams. CHECK the operation of the system.
A15: CHECK THE VOLTAGE AT THE HEATER CONTROL MODULE
1
Ignition switch in position II.

2
Measure the voltage between the heater control module, connector C41, pin 8, circuit 14-CA83(A) (VT/OG), wiring harness side and ground.

Does the meter display battery voltage?
Yes
GO to A16.
No
LOCATE and RECTIFY the break in the circuit between the heater control module and soldered connection S6 using the Wiring Diagrams. CHECK the operation of the system.
A16: CHECK THE VOLTAGE AT THE HEATER CONTROL MODULE

1
Measure the voltage between the heater control module, connector C41, pin 9, circuit 29-CA83 (OG/GN), wiring harness side and ground.

Does the meter display battery voltage?
Yes
GO to A17.
No
LOCATE and RECTIFY the break in the circuit between the heater control module and soldered connection S20 using the Wiring Diagrams. CHECK the operation of the system.
A17: CHECK THE GROUND CONNECTION OF THE HEATER CONTROL MODULE
1
Ignition switch in position 0.

2
Measure the resistance between the heater control module, connector C41, pin 2, circuit 91-CA83 (BK/RD), wiring harness side and ground.

Is less than 2 Ohm measured?
Yes
GO to A18.
No
LOCATE and RECTIFY the break in the circuit between the heater control module and soldered connection S151 using the Wiring Diagrams. CHECK the operation of the system.
A18: CHECK THE HEATER CONTROL MODULE

1
Connect a fused jumper wire (10 A) to the heater control module, connector C41, between pin 9, circuit 29-CA83 (OG/GN) and pin 7, circuit 14S-LD6C (VT/YE), wiring harness side.

Does the rear fog lamp illuminate?
Yes
CHECK and if necessary RENEW the heater control module. CHECK the operation of the system.
No
LOCATE and REPAIR the break in circuit 14S-LD6(C) (VT/YE), between the heater control module and soldered connection S163 using the Wiring Diagrams. CHECK the operation of the system.

PINPOINT TEST B : INDIVIDUAL FOG LAMPS INOPERATIVE
TEST CONDITIONS DETAILS/RESULTS/ACTIONS
B1: DETERMINE THE FAULT CONDITION
1
Ignition switch in position II.
2
SWITCH ON the dipped beam.
3
SWITCH ON the fog lamps.
4
Determine the fault condition.

Is one of the rear fog lamps inoperative?
Yes
- Left-hand rear fog lamp inoperative:GO to B4.
- Right-hand rear fog lamp inoperative:GO to B5.
No
- Left-hand front fog lamp inoperative: GO to B2.
- Right-hand front fog lamp inoperative: GO to B3.
B2: CHECK THE GROUND CONNECTION OF THE LEFT FRONT FOG LAMP
1
Ignition switch in position 0.
2
Disconnect left-hand front fog lamp from connector C184.

3
Measure the resistance between left-hand front fog lamp, connector C184, pin 2, circuit 31-LD11 (BK), wiring harness side and ground.

Is less than 2 Ohm measured?
Yes
LOCATE and RECTIFY the break in circuit 14S-LD11 (VT/WH), between soldered connection S82 and the left ront fog lamp using the Wiring Diagrams. If necessary CHECK and INSTALL A NEW front fog lamp. CHECK the operation of the system.
No
LOCATE and RECTIFY the break in the circuit between the left-hand front fog lamp and soldered connection S141 using the Wiring Diagrams. If necessary CHECK and INSTALL A NEW front fog lamp. CHECK the operation of the system.
B3: CHECK THE GROUND CONNECTION OF THE RIGHT FRONT FOG LAMP
1
Ignition switch in position 0.
2
Disconnect right-hand front fog lamp from connector C183.

3
Measure the resistance between right-hand front fog lamp, connector C183, pin 2, circuit 31-LD17 (BK), wiring harness side and ground.

Is less than 2 Ohm measured?
Yes
LOCATE and RECTIFY the break in circuit 14S-LD17 (VT/WH), between soldered connection S82 and the right-hand front fog lamp using the Wiring Diagrams. If necessary CHECK and INSTALL A NEW front fog lamp. CHECK the operation of the system.
No
LOCATE and RECTIFY the break in the circuit between the right-hand front fog lamp and soldered connection S142 using the Wiring Diagrams. If necessary CHECK and INSTALL A NEW front fog lamp. CHECK the operation of the system.
B4: CHECK THE GROUND CONNECTION OF THE LEFT-HAND REAR FOG LAMP
1
Ignition switch in position 0.
2
Disconnect left-hand rear fog lamp from connector C546.

3
Measure the resistance between the left-hand rear fog lamp, connector C546, pin 2, circuit 31-LD6A (BK), wiring harness side and ground.

Is less than 2 Ohm measured?
Yes
LOCATE and RECTIFY the break in circuit 14S-LD6A (VT/YE), between soldered connection S163 and the left-hand rear fog lamp using the Wiring Diagrams. If necessary CHECK and RENEW the left-hand rear fog lamp. CHECK the operation of the system.
No
LOCATE and RECTIFY the break in the circuit between the left-hand rear fog lamp and soldered connection S162 using the Wiring Diagrams. If necessary CHECK and RENEW the left-hand rear fog lamp. CHECK the operation of the system.
B5: CHECK THE GROUND CONNECTION OF THE RIGHT-HAND REAR FOG LAMP
1
Ignition switch in position 0.
2
Disconnect right-hand rear fog lamp from connector C547.

3
Measure the resistance between right-hand rear fog lamp, connector C547, pin 2, circuit 31-LD6B (BK), wiring harness side and ground.

Is less than 2 Ohm measured?
Yes
LOCATE and RECTIFY the break in circuit 14S-LD6B (VT/YE), between soldered connection S163 and the right-hand rear fog lamp using the Wiring Diagrams. If necessary CHECK and RENEW the right-hand rear fog lamp. CHECK the operation of the system.
No
LOCATE and RECTIFY the break in the circuit between the right-hand rear fog lamp and soldered connection S162 using the Wiring Diagrams. If necessary CHECK and RENEW the right-hand rear fog lamp. CHECK the operation of the system.

PINPOINT TEST C : REAR FOG LAMPS OR FRONT FOG LAMPS ARE PERMANENTLY LIT
TEST CONDITIONS DETAILS/RESULTS/ACTIONS
C1: DETERMINE THE FAULT CONDITION
1
Ignition switch in position II.
2
SWITCH ON the dipped beam.
3
SWITCH OFF the front and rear fog lamps.
4
CHECK fog lamps.

Do the rear fog lamps illuminate?
Yes
GO to C2.
No
Front fog lamps permanently lit: GO to C3.
C2: NARROW DOWN THE CAUSE OF THE SHORT TO BATTERY VOLTAGE
1
Dipped beam and rear fog lamps switched off.
2
CHECK the rear fog lamps.

Do the rear fog lamps illuminate?
Yes
LOCATE and RECTIFY short to battery voltage in the circuits connected to soldered connection S163 with the aid of the wiring diagrams. CHECK the operation of the system.
No
Rear fog lamp only illuminates continuously when dipped beam is switched on, CHECK heater control module and RENEW if necessary. CHECK the operation of the system.
C3: NARROW DOWN THE CAUSE OF THE SHORT TO BATTERY VOLTAGE
1
Ignition switch in position 0.
2
Disconnect front fog lamp relay from socket C178.
3
Ignition switch in position II.
4
SWITCH ON the dipped beam.

Do the front fog lamps illuminate?
Yes
GO to C4.
No
GO to C5.
C4: NARROW DOWN THE CAUSE OF THE SHORT TO BATTERY VOLTAGE
1
Ignition switch in position 0.
2
SWITCH OFF the dipped beam.
3
Disconnect Front fog lamp locking-diode connector C186.
4
Ignition switch in position II.
5
SWITCH ON the dipped beam.

Do the front fog lamps illuminate?
Yes
LOCATE and RECTIFY short to battery voltage in the circuits connected to soldered connection S82 with the aid of the wiring diagrams. CHECK the operation of the system.
No
RENEW the front fog lamp blocking diode. CHECK the operation of the system.
C5: NARROW DOWN THE CAUSE OF THE SHORT TO BATTERY VOLTAGE

1
Measure the voltage between the front fog lamp relay, socket C178, pin 2, circuit 29S-LD8 (OG), wiring harness side and ground.

Does the meter display battery voltage?
Yes
GO to C6.
No
RENEW the front fog lamp relay. CHECK the operation of the system.
C6: NARROW DOWN THE CAUSE OF THE SHORT TO BATTERY VOLTAGE
1
Ignition switch in position 0.
2
Disconnect front fog lamp switch from connector C532.
3
Ignition switch in position II.

4
Measure the voltage between the front fog lamp relay, socket C178, pin 2, circuit 29S-LD8 (OG), wiring harness side and ground.

Does the meter display battery voltage?
Yes
LOCATE and RECTIFY the short to battery voltage in the circuit between the front fog lamp relay and the front fog lamp switch using the wiring diagrams. CHECK the operation of the system.
No
RENEW the front fog lamp switch. CHECK the operation of the system.

Fog Lamps - Vehicles Built From: 02-2005, Convertible > < Parking, Rear and License Plate Lamps - Vehicles Built From: 02-2005, Convertible