Parking lights (vehicles up to 08.2001) — Pinpoint tests (Focus 1)

AF1: DETERMINE WHICH LAMP IS FAULTY.

1Determine the condition in which the fault occurs.

• Do the parking lights, tail lights or license plate lights not work in any position of the light switch?

→ Yes

Go to AF2

→ No

Light switch in Park position and ignition off: Go to AF4

Light switch in the "Parking lights" or "Low beam" position: Go to AF6

Daytime running lights, light switch in the off position and ignition on: Go to AF9

With daytime running lights, light switch in the "Parking lights" position and ignition on: Go to AF10

AF2: CHECK CJB

1Enter the OFF position.

2Disconnect C16 CJB.

3Measure the voltage between CJB connector C16 pin 6, circuit 29S-LF1 (OG/YE), harness side and ground.

• Does the meter show battery voltage?

→ Yes

REPLACE CJB. CHECK system operation is correct.

→ No

Go to AF3

AF3: CHECK ELECTRICAL CIRCUIT 29S-LF1

1Disconnect the C320 light switch.

2Disconnect C16 CJB.

3Measure the resistance between light switch connector C320 pin 13, circuit 29S-LF1 (OG/YE), harness side and CJB connector C16 pin 6, harness side.

• Is the resistance less than 2 ohms?

→ Yes

REPLACE the light switch. CHECK the system for proper operation.

→ No

REPAIR electrical circuit 29S-LF1. CHECK correct system operation.

AF4: CHECK LIGHT SWITCH

1Enter the OFF position.

2Disconnect the C320 light switch.

3Measure the voltage between pin 12 of the light switch connector C320, circuit 30S-LE29 (red/green), harness side, and ground.

• Does the meter show battery voltage?

→ Yes

Replace the light switch. CHECK the system for proper operation.

→ No

Go to AF5

AF5: CHECK ELECTRICAL CIRCUIT 30S-LE29 AND/OR 30S-LE29A

1Disconnect C456 ignition switch.

2Measure the resistance between pin 2 of ignition switch connector C456, circuit 30S-LE29 and/or 30S-LE29A (RED/GN), harness side, and pin 12 of light switch connector C320, harness side.

• Is the resistance less than 2 ohms?

→ Yes

REPLACE the ignition switch. CHECK the system for proper operation.

→ No

REPAIR electrical circuit 30S-LE29 and/or 30S-LE29A. CHECK proper system operation.

AF6: CHECK FUSE F32

1Disconnect Fuse F32 (10A) (CJB).

2Check fuse F32

• Is fuse F32 (10 A) (CJB) OK?

→ Yes

Go to AF7

→ No

REPLACE fuse F32. If fuse F32 fails again, LOCATE and REPAIR the short circuit using the wiring diagrams. CHECK the system for proper operation.

AF7: CHECK LIGHT SWITCH

1Enter the OFF position.

2Disconnect the C320 light switch.

3Measure the voltage between pin 11 of connector C320 of the light switch, circuit 29-LE29 (OR/BLK), harness side, and ground.

• Does the meter show battery voltage?

→ Yes

REPLACE the light switch. CHECK the system for proper operation.

→ No

Go to AF8

AF8: CHECK CJB

1Measure the voltage between pin 8 C17 CJB, component side, and ground.

• Does the meter show battery voltage?

→ Yes

REPAIR electrical circuit 29-LE29. CHECK correct system operation.

→ No

REPLACE CJB. CHECK system operation is correct.

AF9: CHECK GROUND CONNECTION AT REAR LEFT TURN SIGNAL LAMP SECTION

1Enter the OFF position.

2Disconnect the C320 light switch.

3Enter the ON position.

4Measure the voltage between light switch pin 15 C320, circuit 15S-LE29 (green/black), harness side, and ground.

• Does the meter show battery voltage?

→ Yes

REPLACE the light switch. CHECK the system for proper operation.

→ No

For additional information, see Section 417-04.

AF10: CHECK FUSE F14 BJB.

1CHECK Fuse F14.

2Check fuse F14

• Is fuse F14 (BJB) OK?

→ Yes

Go to AF11

→ No

REPLACE fuse F14. If fuse F14 fails again, LOCATE and REPAIR the short circuit using the wiring diagrams. CHECK the system for proper operation.

AF11: CHECK ELECTRICAL CIRCUIT 30S-LE29 AND/OR 30S-LE29A

1Disconnect the C320 light switch.

2Measure the resistance between fuse F14 and pin 12 of connector C320 of the light switch, circuit 30S-LE29/30S-LE29A (red/green), harness side.

• Is the resistance less than 2 ohms?

→ Yes

Replace the light switch. CHECK the system for proper operation.

→ No

REPAIR electrical circuit 30S-LE29 and/or 30S-LE29A. CHECK proper system operation.

AG1: IDENTIFY THE STATE IN WHICH THE MALFUNCTION OCCURS

1Enter the OFF position.

2Set the light switch to the "Parking Lights" position.

3Determine the condition in which the fault occurs.

• Parking lights and tail lights not working?

→ Yes

Go to AG2

→ No

Tail lights not working: Go to AG8

License Plate Lights Not Working: Go to AG14

AG2: IDENTIFY THE STATE IN WHICH THE MALFUNCTION OCCURS

1Check the operation of the right parking lights and tail lights.

• The right parking light and tail light do not work?

→ Yes

Go to AG7

→ No

Right Parking Light Not Working: Go to AG3

Left Parking Light Not Working: Go to AG5

AG3: CHECK ELECTRICAL CIRCUIT 29S-LF16

1Disconnect C834 right headlight.

2Measure the voltage between pin 3 of connector C834 right headlight, circuit 29S-LF16 (OG/GN), harness side and ground.

• Does the meter show battery voltage?

→ Yes

Go to AG4

→ No

REPAIR electrical circuit 29S-LF16. CHECK proper system operation.

AG4: CHECK ELECTRICAL CIRCUIT 31-LE30 ON GROUND SECTION

1Measure the resistance between pin 4 of connector C834 of the right headlight, electrical circuit 31-LE30 (black), harness side, and ground.

• Is the resistance less than 2 ohms?

→ Yes

REPLACE the right headlight after checking the bulb. CHECK the system for proper operation.

→ No

REPAIR circuit 31-LE30 at ground section. CHECK system operation for proper operation.

AG5: CHECK ELECTRICAL CIRCUIT 29S-LF7

1Disconnect C835 left headlight.

2Measure the voltage between pin 3 of connector C835 left headlight, circuit 29S-LF7 (OR/BL), harness side and ground.

• Does the meter show battery voltage?

→ Yes

Go to AG6

→ No

REPAIR electrical circuit 29S-LF7. CHECK proper system operation.

AG6: CHECK ELECTRICAL CIRCUIT 31-LE31 ON GROUND SECTION

1Measure the resistance between pin 4 of connector C835 left headlight, circuit 31-LE31 (black), harness side, and ground.

• Is the resistance less than 2 ohms?

→ Yes

REPLACE the left headlight after checking the bulb. CHECK the system for proper operation.

→ No

REPAIR circuit 31-LE31 at ground section. CHECK system operation for proper operation.

AG7: CHECK FUSE F48

1Enter the OFF position.

2CHECK F48 (7.5A) (CJB).

3Check fuse F48 (7.5A) (CJB).

• Is fuse F48 OK?

→ Yes

REPLACE CJB. CHECK system operation is correct.

→ No

REPLACE fuse F48. If fuse F48 fails again, LOCATE and REPAIR the short circuit using the wiring diagrams. CHECK the system for proper operation.

AG8: IDENTIFY THE STATE IN WHICH THE MALFUNCTION OCCURS

1Check the operation of the left parking light and rear light.

• Left parking light and tail light not working?

→ Yes

Go to AG13

→ No

Right Tail Light Not Working: Go to AG9

Left Tail Light Not Working: Go to AG11

AG9: CHECK ELECTRICAL CIRCUIT 29S-LF20

1Disconnect C473, C477 or C475 from the right tail light assembly.

2Measure the voltage between the pins of the right rear light assembly:

- 3-door variants and 5-door variants: pin 1 of connector C473,

- 4-door version: pin 3 of connector C477,

- "Universal": pin 2 of the C475 connector,

- electrical circuit 29S-LF20 (orange), from the wiring side, and "ground".

• Does the meter show battery voltage?

→ Yes

Go to AG10

→ No

REPAIR electrical circuit 29S-LF20. CHECK correct system operation.

AG10: CHECK ELECTRICAL CIRCUIT 31-LF24 ON GROUND SECTION

1Measure the resistance between the pins of the right rear light assembly:

- 3 and 5-door variants: pin 3 of connector C473,

- 4-door version: pin 4 of connector C477,

- "Universal": pin 3 of the C475 connector,

- electrical circuit 31-LF24 (black), from the wiring side, and "ground".

• Is the resistance less than 2 ohms?

→ Yes

REPLACE the right tail light assembly after checking the bulb. CHECK the system for proper operation.

→ No

REPAIR circuit 31-LE24 at ground section. CHECK system operation for proper operation.

AG11: CHECK ELECTRICAL CIRCUIT 29S-LF11

1Disconnect C472, C476 or C474 from the left tail light assembly.

2Measure the voltage between the pins of the left tail light assembly

- 3 and 5-door variants: pin 1 of connector C472,

- 4-door version: pin 2 of connector C476,

- "Universal": pin 2 of the C474 connector,

- electrical circuit 29S-LF11 (orange-white), from the wiring side, and "ground".

• Does the meter show battery voltage?

→ Yes

Go to AG12

→ No

REPAIR electrical circuit 29S-LF11. CHECK correct system operation.

AG12: CHECK ELECTRICAL CIRCUIT 31-LF23 ON GROUND SECTION

1Measure the resistance between the pins of the left rear light unit,

- 3 and 5-door variants: pin 3 of connector C472,

- 4-door version: pin 6 of connector C476,

- "Universal": pin 3 of the C474 connector,

- electrical circuit 31-LF23 (black), from the wiring side, and "ground".

• Is the resistance less than 2 ohms?

→ Yes

REPLACE the left tail light assembly after checking the bulb. CHECK the system for proper operation.

→ No

REPAIR circuit 31-LF23 at ground section. CHECK system for proper operation.

AG13: CHECK FUSE F47

1Enter the OFF position.

2CHECK F47 (7.5A) (CJB).

3Check fuse F47 (7.5A) (CJB).

• Is the fuse good?

→ Yes

REPLACE CJB. CHECK system operation is correct.

→ No

REPLACE fuse F47. If fuse F47 fails again, LOCATE and REPAIR the short circuit using the wiring diagrams. CHECK the system for proper operation.

AG14: IDENTIFY THE STATE IN WHICH THE MALFUNCTION OCCURS

1Check the operation of the license plate lights.

• Right license plate light not working?

→ Yes

Go to AG17

→ No

Left License Plate Light Not Working: Go to AG16

Both license plate lights are not working: Go to AG15

AG15: CHECK ELECTRICAL CIRCUIT 29S-LF21

1Disconnect the C320 light switch.

2Disconnect C495 left license plate lamp.

3Measure the resistance between pin 16 of light switch connector C320, circuit 29S-LF21 (OR/BLK), harness side and pin 1 of left license plate lamp C495, harness side.

• Is the resistance less than 2 ohms?

→ Yes

Replace the light switch. CHECK the system for proper operation.

→ No

REPAIR electrical circuit 29S-LF21. CHECK correct system operation.

AG16: CHECK ELECTRICAL CIRCUIT 31-LF21 AT GROUND SECTION

1Disconnect C494 left license plate lamp.

2Measure the resistance between pin 1 of the left license plate lamp connector C494, circuit 31-LF21 (black), harness side and ground.

• Is the resistance less than 2 ohms?

→ Yes

REPLACE the left license plate light bulb after checking the bulb. CHECK the system for proper operation.

→ No

REPAIR electrical circuit 31-LF21. CHECK for proper system operation.

AG17: CHECK ELECTRICAL CIRCUIT 29S-LF22

1Disconnect C497 right license plate lamp.

2Measure the voltage between pin 1 of connector C497 right license plate lamp, circuit 29S-LF22 (OR/BLK), harness side and ground.

• Does the meter show battery voltage?

→ Yes

Go to AG18

→ No

REPAIR electrical circuit 29S-LF22. CHECK correct system operation.

AG18: CHECK ELECTRICAL CIRCUIT 31-LF22 ON GROUND SECTION

1Disconnect C496 right license plate lamp.

2Measure the resistance between pin 1 of connector C496 right license plate lamp, circuit 31-LF22 (black), harness side and ground.

• Is the resistance less than 2 ohms?

→ Yes

After checking the bulb, REPLACE the right license plate light bulb. CHECK that the system is operating correctly.

→ No

REPAIR electrical circuit 31-LF22. CHECK for proper system operation.

AH1: IDENTIFY THE STATE IN WHICH THE MALFUNCTION OCCURS

1Enter the ON position.

2Check that the parking lights, tail lights and license plate lights are on at all times.

• Are all parking lights, tail lights and license plate lights always on with the light switch in the off position?

→ Yes

Go to AH4

→ No

Do all parking lights, tail lights and license plate lights come on all the time when the light switch is in the Park position?

For vehicles without daytime running lights: Go to AH2

For vehicles with daytime running lights: Go to AH3

AH2: CHECK IGNITION SWITCH

1Enter the OFF position.

2Disconnect C456 ignition switch.

3Check the ignition switch for a short circuit.

• Are all tail lights and parking lights on at all times when the light switch is in the Park position?

→ Yes

REPAIR electrical circuit 30S-LE29. CHECK correct system operation.

→ No

REPLACE the ignition switch. CHECK the system for proper operation.

AH3: CHECK IGNITION SWITCH/ELECTRICAL 30S-LE29, 30S-LE29A.

1Enter the OFF position.

2Disconnect C456 ignition switch.

3Disconnect Fuse F14 (10A) (BJB).

4Check ignition switch/electrical circuit 30S-LE29, 30S-LE29A.

• Are all tail lights and parking lights on at all times when the light switch is in the Park position?

→ Yes

REPAIR electrical circuit 30S-LE29 and/or 30S-LE29A. CHECK proper system operation.

→ No

REPLACE the ignition switch. CHECK the system for proper operation.

AH4: CHECK LIGHT SWITCH

1Enter the OFF position.

2Disconnect the C320 light switch.

3Enter the ON position.

4Check that the parking lights, tail lights and license plate lights are on at all times.

• Are all parking lights and tail lights on at all times?

→ Yes

Go to AH5

→ No

License plate lights are always on: Go to AH7

License plate lights not on all the time, vehicles without daytime running lights: REPLACE the light switch. CHECK the system for proper operation.

License Plate Lamps Not On All the Time, Vehicles With Daytime Running Lamps: Refer to Section 417-04 for additional information.

AH5: CHECK CJB

1Enter the OFF position.

2Disconnect C16 CJB.

3Enter the ON position.

4Check that all parking lights, tail lights and license plate lights come on at all times.

• Are the parking lights and tail lights on at all times?

→ Yes

Right Parking Lights and Tail Lights Always On: REPAIR circuit 29S-LF20 or 29S-LF16. CHECK system for proper operation.

Left Parking Lights and Tail Lights Always On: REPAIR circuit 29S-LF11 or 29S-LF7. CHECK system for proper operation.

→ No

Go to AH6

AH6: CHECK ELECTRICAL CIRCUIT 29S-LF1

1Measure the voltage between CJB connector C16 pin 6, circuit 29S-LF1, harness side and ground.

• Does the meter show battery voltage?

→ Yes

REPAIR electrical circuit 29S-LF1. CHECK correct system operation.

→ No

REPLACE CJB. CHECK system operation is correct.

AH7: CHECK CENTRAL TIMER MODULE

1Disconnect the C1000 CTM.

2Check the Central Timer Module (CTM) for a short circuit

• Are the license plate lights on all the time?

→ Yes

Go to AH8

→ No

REPLACE CTM. CHECK system operation is correct.

AH8: CHECK CJB

1Disconnect C15 CJB.

2Check CJB for short circuit.

• Are the license plate lights on all the time?

→ Yes

REPAIR electrical circuit 29S-LE18, 29S-LF21 or 29S-LF22. CHECK proper system operation.

→ No

REPLACE CJB. CHECK system operation is correct.