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Contents Wiring diagrams Section: Exterior Lights All sections

Lighting Systems: Other Suzuki Forenza I

Exterior Lights 27 illustrations ~1024 words

Daytime Running Lamps Do Not Turn ON

StepActionValue (s)YesNo
1Turn the headlamps ON. Do the headlamps, parking lamps, taillamps, and instrument lamps work?Go to Step 3Go to Step 2
2Repair the regular headlamp system before completing this diagnostic table. Does the DRL system work after the headlamps, exterior lamps, and instrument lamp systems have been repaired?System OKGo to Step 3
3Check fuses F6 and Ef28. Is fuse F6 and Ef28 blown?Go to Step 4Go to Step 5
4Check for a short circuit and repair if necessary. Replace any blown fuse. Is the repair complete?System OK
5Turn the ignition ON. Check the voltage at fuses F6 and Ef28. Does the voltage equal the specified value?11 - 14 VGo to Step 7Go to Step 6
6Repair the power supply circuit for fuse F6 and Ef28. Is the repair complete?System OK
7Disconnect the electrical connector from the DRL module. Turn the ignition ON. Check the voltage at terminal 3 and 6 of the DRL module. Is the voltage equal to the specified value?11 - 14 VGo to Step 9Go to Step 8
8Repair the open circuit between fuse F6 and terminal 3 of the DRL module connector. Is the repair complete?System OK
9With the electrical connector still disconnected from the DRL module, check the voltage at terminal 6 of the DRL module. Is the voltage equal to the specified value?11 - 14 VGo to Step 11Go to Step 10
10Repair the open circuit between the Headlamp switch terminal 4 and G201 connector. Is the repair complete?System OK
11With the DRL module still disconnected, use an ohmmeter to check the resistance between G203 and terminal 4 of the DRL module connector. Is the resistance equal to the specified value?0 ohmsGo to Step 13Go to Step 12
12Repair the circuit between G203 and terminal 4 of the DRL module connector. Is the repair complete?System OK
13Release the parking brake. Turn the ignition switch ON. Observe the parking brake indicator lamp. Is the parking brake indicator lamp ON?Go to Step 14Go to Step 17
14Disconnect the electrical connector to the parking brake lever switch. Is the parking brake indicator lamp still ON?Go to Step 15Go to Step 16
15Repair the wire short to ground in the parking brake circuit. Is the repair complete?System OK
16Replace the parking brake lever switch. Is the repair complete?System OK
17Replace the DRL module. Is the repair complete?System OK

DAYTIME RUNNING LAMPS DIAGNOSIS

Parking Lamps and Taillamps Do Not Work

StepActionValue (s)YesNo
1Check the headlamps. Do the headlamps work?Go to Step 3Go to Step 2
2Repair the headlamps before continuing with this chart. After the headlamps have been repaired, are the parking lamps and taillamps still inoperative?Go to Step 3System OK
3Turn the parking lamps ON. Use a voltmeter to check voltage at the bulb socket positive terminal. Does voltage at the bulb socket equal the specified value?11 - 14 VGo to Step 4Go to Step 7
4Connect an ohmmeter between ground and the lamp socket negative terminal. Is the resistance equal to the specified value?0 ohmsGo to Step 6Go to Step 5
5Repair the ground circuit for the lamps. Is the repair complete?System OK
6Replace the faulty bulbs. Is the repair complete?System OK
7Check fuses Ef23 and Ef28. Are any of the fuses blown?Go to Step 8Go to Step 9
8Check for a short circuit and repair it, if necessary. Replace the fuse. Is the repair complete?System OK
9Turn the headlamps ON. Check the voltage at fuses Ef23 (left-side illumination lamp) and Ef28 (rightside illumination lamp). Does the voltage at the fuses equal the specified value?11 - 14 VGo to Step 10
10Repair the open circuit between the fuses Ef23 and Ef28 and the illumination lamps. Is the repair complete?System OK

PARKING LAMPS AND TAILLAMPS DIAGNOSIS

Stoplamps Do Not Work

CAUTIONWhen probing a bulb socket with a voltmeter or a test lamp, do not contact the side of the socket (ground) when you are testing the positive contact at the bottom of the socket. If the voltage and the ground are both available at the bulb socket, contacting both at the same time with a test probe will cause a blown fuse.
StepActionValue(s)YesNo
1Check fuse Ef13. Is fuse Ef13 blown?Go to Step 2Go to Step 3
2Check for a short circuit and repair it, if necessary. Replace the fuse. Is the repair complete?System OK
3Use a voltmeter to check the voltage at fuse Ef13. Is the voltage at Ef13 equal to the specified value?11 - 14 VGo to Step 5Go to Step 4
4Repair the power supply circuit for fuse Ef13. Is the repair complete?System OK
5Press the brake pedal. Check the positive terminals of the bulb sockets with a test lamp. Does the test lamp illuminate?Go to Step 6Go to Step 8
6Connect an ohmmeter between ground and the stoplamp ground terminal. Is the resistance equal to the specified value?0 ohmsGo to Step 8Go to Step 7
7Repair the ground circuit. Is the repair complete?System OK
8Disconnect the wiring connector from the brake switch. Press the brake pedal. Use an ohmmeter to check continuity between terminals 2 and 4. Is the resistance equal to the specified value?0 ohmsGo to Step 10Go to Step 9
9Replace the brake switch. Is the repair complete?System OK
10Disconnect the brake switch electrical connector. Check the voltage at terminal 2. Does the voltmeter show the specified value?11 - 14 VGo to Step 12Go to Step 11
11Repair the open circuit between the fuse Ef13 and the brake switch. Is the repair complete?System OK
12Repair the open circuit between the brake switch and the stoplamps. Is the repair complete?System OK

STOPLAMPS DIAGNOSIS

Center High-Mounted Stoplamp (CHMSL) Does Not Work

StepActionValue (s)YesNo
1Check the stoplamps. Do the stoplamps work?Go to Step 3Go to Step 2
2Repair the stoplamps before completing this diagnostic table. Does the CHMSL work after the stoplamps have been repaired?System OKGo to Step 3
3Remove the CHMSL lamp bulb. Visually and physically check the CHMSL lamp bulb. Is the lamp bulb defective?Go to Step 4Go to Step 5
4Replace the CHMSL lamp bulb. Is the repair complete?System OK
5Disconnect the CHMSL connector. Use an ohmmeter to measure the resistance between ground and the BLK wire in the CHMSL connector. Is the resistance equal to the specified value?0 ohmsGo to Step 7Go to Step 6
6Repair the open circuit between ground and the BLK wire in the CHMSL connector. Is the repair complete?System OK
7Repair the open circuit between the stoplamp switch and the CHMSL. Is the repair complete?System OK

CENTER HIGH-MOUNTED STOPLAMP DIAGNOSIS

Backup Lamps Inoperative

StepActionValue (s)YesNo
1Block the wheels. Apply the parking brake to prevent the vehicle from moving. Turn the ignition ON. Put the transaxle in reverse (R). Remove one of the backup lamps from its socket. Test the lamp socket positive terminal with a voltmeter. Does the battery voltage available at the backup lamp socket positive terminal equal the specified value?11 - 14 VGo to Step 3Go to Step 2
2Repair the open circuit between fuse F20 and the backup lamps. Is the repair complete?System OK
3Connect an ohmmeter between ground and the negative terminal at the bulb socket. Is the resistance equal to the specified value?0 ohmsGo to Step 4Go to Step 5
4Replace the faulty backup lamps. Is the repair complete?System OK
5Reinstall the backup lamps. Disconnect the electrical connector at the reverse switch. (On automatic transaxle (A/T) vehicles, disconnect the neutral safety/backup switch.) Turn the ignition ON. Put the transaxle in R. Use a voltmeter to check for the reverse switch terminal 1. (On A/T vehicles, test terminal 7 of the neutral safety/backup switch). Does the battery voltage available at terminal 1 (or terminal 7, if equipped with A/T) equal the specified value?11 - 14 VGo to Step 7Go to Step 6
6Repair the open circuit between the backup lamps and the reverse switch (or the neutral safety/backup switch if equipped with A/T). Is the repair complete?System OK
7Put the transaxle in R. Use an ohmmeter to check the continuity between reverse switch terminal 1 and terminal 2 (terminals 7 and 8 on the neutral safety/backup switch, if equipped with A/T). Does the continuity between terminals 1 and 2 (terminals 7 and 8, if equipped with A/T) equal the specified value?0 ohmsGo to Step 9Go to Step 8
8Replace the reverse switch (neutral safety/backup switch, if equipped with A/T). Is the repair complete?System OK
9Repair the ground circuit between the reverse switch (neutral safety/backup switch, if equipped with A/T) and ground G401 (H/B: G402, S/W: G303, G304). Is the repair complete?System OK

BACKUP LAMPS DIAGNOSIS

Turn Signal Lamps and Hazard Lamps Do Not Work

StepActionValue (s)YesNo
1Check fuses F3 and F14. Is either fuse blown?Go to Step 2Go to Step 3
2Check for a short circuit and repair it, if necessary. Replace the fuse. Is the repair complete?System OK
3Turn the ignition ON. Check the voltage at fuses F3 and F14. Does the battery voltage available at both fuses F3 and F14 equal the specified value?11 - 14 VGo to Step 4Go to Step 7
4Turn the hazard lamp switch ON. Remove each of the inoperative lamps from its socket. Test each lamp socket positive terminal with a voltmeter. Does the battery voltage pulsing at the turn signal hazard lamp socket positive terminal equal the specified value?11 - 14 VGo to Step 5Go to Step 9
5At each bulb socket, use an ohmmeter to check the ground circuit. Is the resistance equal to the specified value?0 ohmsGo to Step 6Go to Step 8
6Replace any faulty turn signal/hazard bulbs. Is the repair complete?System OK
7Repair the power supply circuit to fuses. Is the repair complete?System OK
8Repair the open ground wires. Is the repair complete?System OK
9Turn the hazard lamp switch ON. Test the blinker unit connector terminal 49a with a voltmeter. Does the battery voltage pulsing at the blinker unit terminal 49a equal the specified value?11 - 14 VGo to Step 15Go to Step 10
10Turn the hazard lamp switch ON. Test the blinker unit connector terminal 49 with a voltmeter. Does the battery voltage available at the blinker unit terminal 49 equal the specified value?11 - 14 VGo to Step 11Go to Step 14
11Disconnect the blinker unit from the connector. Use an ohmmeter to check between ground and the connector for terminal 31 of the blinker unit. Is the resistance equal to the specified value?Approx. 0 ohmsGo to Step 13Go to Step 12
12Repair the blinker unit ground connection. Is the repair complete?System OK
13Replace the faulty blinker unit. Is the repair complete?System OK
14Disconnect the hazard lamp switch connector. Check for voltage at terminal 8. Turn the ignition ON. Check for voltage at terminal 10. Does the battery voltage available at both terminals equal the specified value?11 - 14 VGo to Step 15Go to Step 20
15Remove the hazard lamp switch. Turn the hazard lamp switch OFF. Check for continuity between terminals 7 and 10. Turn the hazard lamp switch ON. Check for continuity between terminals 7 and 8. Do both tests show the specified value?0 ohmsGo to Step 18Go to Step 17
16Remove the hazard lamp switch. Turn the hazard lamp switch ON. Use an ohmmeter to check for continuity between terminals 5, 6 and 9. Does the continuity between terminals 5, 6 and 9 equal the specified value?0 ohmsGo to Step 19Go to Step 17
17Replace the faulty hazard lamp switch. Is the repair complete?System OK
18Repair the open circuit between the hazard lamp switch terminal 7 and the blinker unit terminal 49. Is the repair complete?System OK
19Repair the open circuit between the hazard lamp switch and the fuses F3 or F14. Is the repair complete?System OK

TURN SIGNAL LAMPS AND HAZARD LAMPS DIAGNOSIS

Hazard Lamps Do Not Operate, Turn Signals Are ok

StepActionValue (s)YesNo
1Check fuse F14. Is fuse F14 blown?Go to Step 2Go to Step 3
2Check for a short circuit and repair it, if necessary. Replace the fuse. Is the repair complete?System OK
3Use a voltmeter to check for power to fuse F14. Does the battery voltage available at fuse F14 equal the value specified?11 - 14 VGo to Step 5Go to Step 4
4Repair the power supply circuit to fuse F14. Is the repair complete?System OK
5Disconnect the hazard switch connector. Use a voltmeter to check power to the hazard switch terminal 8. Does the battery voltage available at connector terminal 8 equal the value specified?11 - 14 VGo to Step 6Go to Step 9
6Remove the hazard switch and disconnect it for testing. Turn the hazard lamp switch ON. Test with an ohmmeter between terminals 7 and 8. Is the resistance equal to the specified value?0 ohmsGo to Step 7Go to Step 10
7With the hazard switch still removed and disconnected for testing, turn the hazard lamp switch ON. Use an ohmmeter to check between terminals 5, 6 and 9. Is the resistance equal to the specified value?0 ohmsGo to Step 8Go to Step 10
8Repair the open circuit between the hazard lamp switch connector and splice S202 Is the repair compelte?System OK
9Repair the open circuit between the hazard switch connector terminal 8 and fuse F14. Is the repair complete?System OK
10Replace the faulty hazard switch. Is the repair complete?System OK

HAZARD LAMPS AND TURN SIGNALS DIAGNOSIS

Interior Courtesy Lamp Inoperative

WARNINGAlways make sure there is an electrical load (lamp bulb, etc.) in any circuit between battery terminals. Do not make a short circuit between battery terminals with a jumper wire. Hazardous sparking would result and could cause injury.

Luggage Compartment Lamp Inoperative

WARNINGAlways make sure there is an electrical load (lamp bulb, etc.) in any circuit between battery terminals. Do not make a short circuit between battery terminals with a jumper wire. Hazardous sparking would result and could cause injury.

Front Fog Lamps Inoperative

StepActionValue (s)YesNo
1Check fuse Ef24 and Ef28. Is fuse Ef24 and Ef28 blown?Go to Step 2Go to Step 3
2Check for a short circuit and repair it, if necessary. Replace the fuse. Is the repair complete?System OK
3Use a voltmeter to check fuse Ef24 and Ef28. Does the battery voltage available at fuse Ef24 and Ef28 equal the specified value?11 - 14 VGo to Step 5Go to Step 4
4Repair the open circuit from the battery to fuse Ef24 and Ef28. Is the repair complete?System OK
5Remove the fog lamp relay, DRL relay and temporarily substitute a known good relay, such as the headlamp relay. But do not replace DRL relay on other relay. (Do not substitute the illumination lamp relay.) Do the fog lamps work with the substituted relay?Go to Step 6Go to Step 7
6Return the substituted relay to its original position. Replace the inoperative fog lamp relay. Is the repair complete?System OK
7Return the substituted relay to its original position, but do not reinstall the fog lamp relay. Turn ON the exterior lamps and the front fog lamps. Using a voltmeter, check the fog lamp relay socket at the connector for fog lamp relay terminal 30 and DRL relay socket at the connector for DRL relay terminal 30. Does the voltage available at the fog lamp relay socket and DRL relay socket equal the specified value?11 - 14 VGo to Step 9Go to Step 8
8Repair the open circuit between fuse Ef24 and the fog lamp relay, fuse Ef28 and DRL relay. Is the repair complete?System OK
9At the DRL relay socket, use an ohmmeter to verify that the connector for relay terminal 87 is connected to ground. Does the resistance equal the specified value?0 ohmsGo to Step 11Go to Step 10
10Repair the ground circuit for the DRL relay. Is the repair complete?System OK
11Reinstall the fog lamp relay. Turn ON the exterior lamps and the front fog lamps. Test for voltage at terminal 2 of the fog lamp connector. Does the battery voltage available at terminal 2 of the fog lamp connector equal the specified value?11 - 14 VGo to Step 13Go to Step 12
12Repair the open circuit between the fog lamp relay terminal 87 and the fog lamps. Is the repair complete?System OK
13Use an ohmmeter (or test lamp) to check the ground at terminal 1 of the fog lamp connector. Does the resistance equal the specified value?0 ohmsGo to Step 15Go to Step 14
14Repair the fog lamp ground circuit. Is the repair complete?System OK
15Replace the faulty fog lamp bulbs. Is the repair complete?System OK

FRONT FOG LAMPS DIAGNOSIS

Headlamp Aiming

Note. Check, and adjust if necessary, headlamp aiming whenever a headlamp assembly is replaced or the vehicle has been in a collision. If the headlamp cannot be properly adjusted, replace the headlamp. Refer to "Headlamps".

Some state and local laws specify requirements for headlamp aim. All of these laws must be complied with performing any headlamp aiming operations.

Headlamp aim should be inspected for the following conditions

Scheme 48

Scheme 48: Headlamp Aiming
Scheme 48: Headlamp Aiming
  1. When a new headlamp capsule is installed.
  2. If service or repairs to the front and area have, or may have, disturbed the headlamps or their mounting.
  3. The area will consist of a level surface large enough to allow for a vehicle and an additional 7.62 m (25 ft) measured from face lamps to the front of the aiming screen.
  4. The screen will be 1.52 m (5 ft) high x 3.66 m (12 ft) wide with a matte white surface well shaded from extraneous light and properly adjusted to the floor on which the vehicle stands. Provisions should be made to align the screen parallel with the vehicle.
  5. The screen shall be provided with a fixed vertical centerline, two laterally adjustable vertical tapes, and one vertically adjustable horizontal tape.
  6. If a regular commercial aiming screen is not available, the screen may consist of a vertical wall having a clear uninterrupted area approximately 1.83 m (6 ft) high and 3.66 m (12 ft) wide. The surface should be finished with a washable non-gloss white paint.

Check Points & Before Aiming

Scheme 49

Scheme 49
Scheme 49
  1. Remove any snow, ice or mud from the vehicle.
  2. The vehicle must have a full tank of gas.
  3. Stop all other work on the vehicle.
  4. If any service has been performed on the vehicle make sure that all of the components are back in their original place.
  5. The vehicle must be on a level surface.

Scheme 50

Scheme 50: Preparations
Scheme 50: Preparations
  1. The vehicle left tires must be aligned with the reference line extending from the screen with the headlamps aligned with the reference line.
  2. Do not load any cargo in the vehicle.
  3. The vehicle must contain one person or 72.56 kg (160 lb) on the driver's seat.
  4. Inflate the tires to the proper pressure.
  5. Simulate the vehicle loads if the intended use of the vehicle is for hauling heavy loads or towing a trailer.
  6. Rock the vehicle in order to stabilize the suspension.
  7. Turn ON the headlamps to low beam and observe the left and the top edges of the high intensity zone on the screen. The edges of the high intensity zone should fall within the specifications.

Scheme 51

Scheme 51: Vertical (Up/Down) Aiming Procedures
Scheme 51: Vertical (Up/Down) Aiming Procedures
  1. Turn ON the low beam headlamps and mark horizontal line & vertical line around high intensity zone as figure. This line is called "Cut Off Line".
  2. Adjust the vertical aiming screw with a "+" screw driver so that LINE A (horizontal line of cut off line) shall be placed within 100 mm (4 in.) upward and downward from the horizontal axis of HV point.
  3. Close the hood carefully and verify that the hood is securely closed.

Horizontal (Left/Right) Aiming Procedures

  1. Turn ON the low beam headlamps and mark horizontal line & vertical line around high intensity zone as figure. This line is called "Cut Off Line".
  2. Detach horizontal aiming hold cap to be placed outside of a headlamps.
  3. Adjust the horizontal aiming driver with a "+" screw driver so that LINE B (vertical line of cut off line) shall be placed within 100 mm (4 in.) right and left from the vertical axis of HV point.
  4. Close the hood carefully and verify that the hood is securely closed.

Scheme 52

Scheme 52: Removal
Scheme 52: Removal

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Scheme 61
  1. Disconnect the negative battery cable.
  2. Remove the headlamp mounting bolts.
  3. Remove the headlamp mounting nut.
  4. Disconnect the turn signal lamp electrical connector.
  5. Disconnect the headlamp electrical connector.
  6. Remove the headlamp assembly.
  7. Turn left and remove the headlamp low-beam cap.
  8. Dry off the headlamp low-beam bulb clip.
  9. Disconnect the headlamp low-beam bulb connector.
  10. Remove the headlamp low-beam bulb.
  11. Remove the park lamp.
  12. Remove the headlamp high-beam cap.
  13. Pry off the headlamp high-beam bulb clip.
  14. Disconnect the headlamp high-beam bulb connector.
  15. Remove the headlamp high-beam bulb.
  16. Remove the turn signal lamp.

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Scheme 66
  1. Install the turn signal lamp.
  2. Install the headlamp high-beam bulb.
  3. Connect the headlamp high-beam bulb connector.
  4. Install the headlamp high-beam bulb clip.
  5. Install the cap concealing the headlamp high-beam bulb.
  6. Install the park lamp.
  7. Install the headlamp low-beam bulb.
  8. Install the headlamp low-beam bulb clip.
  9. Connect the headlamp low-beam bulb connectors.
  10. Install the cap concealing the headlamp low-beam bulb.
  11. Connect the headlamp electrical connector.
  12. Connect the turn signal lamp electrical connector.
  13. Install the headlamp assembly.
  14. Install the headlamp mounting bolts. Tighten: Tighten the headlamp mounting bolts to 4 N.m (35 lb-in).
  15. Install the headlamp mounting nut. Tighten: Tighten the headlamp mounting nut to 4 N.m (35 lb-in).
  16. Connect the negative battery cable.

Scheme 67

Scheme 67: Removal
Scheme 67: Removal

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Scheme 74
  1. Disconnect the negative battery cable.
  2. Remove the radiator grille screws.
  3. Insert the negative screwdriver to the radiator service hole and then push the radiator grille clips.
  4. Remove the radiator grille.
  5. Remove the headlamp mounting bolts.
  6. Disconnect the turn signal lamp electrical connector.
  7. Disconnect the headlamp electrical connector.
  8. Remove the headlamp assembly.
  9. Remove the headlamp cap.
  10. Pry off the headlamp bulb clip.
  11. Disconnect the headlamp bulb connector.
  12. Remove the headlamp bulb.
  13. Remove the park lamp.
  14. Remove the turn signal lamp.

Bulb Usage Chart

BulbReplacement Bulb Number
Backup Lamp21 W
Center High-Mounted Stoplamp5 W
Front Fog Lamp27 W
Headlamp55 W
Interior Courtesy Lamp10 W
License Plate Lamp5 W
Luggage Compartment Lamp10 W
Park and Front Turn Signal LampDouble 21/5 W
Rear Turn Signal Lamp21 W
Side Marker Lamp5 W
Taillamp and StoplampDouble 21/5 W

BULB USAGE SPECIFICATIONS CHART

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