Lighting Systems: Diagnosis Chevrolet Silverado 1500 HD

Circuit Description

The body control module (BCM) controls the illumination dimming of all of the control switch indicators. The BCM sets the control switch indicator illumination level according to the I/P dimmer switch signal received when the component is activated and the indicator is ON. The BCM also activates the headlamp on indicator.

Conditions for Running the DTC

The battery voltage must be between 9.0-16.0 volts.

Conditions for Setting the DTC

1. The headlamp on indicator control circuit is open.
2. The headlamp on indicator control circuit is shorted to ground.
3. The headlamp on indicator control circuit is shorted to voltage.

Action Taken When the DTC Sets

The headlamps on indicator will remain on with the headlamps off.

The headlamps on indicator will remain off with the headlamps on.

Conditions for Clearing the MIL/DTC

1. The DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTCs can be cleared using a scan tool.

The body control module (BCM) supplies battery positive voltage to the reading lamps, underhood lamp, instrument panel (I/P) compartment lamp, and both visor vanity mirror lamps. In the event that any of these lamps were to remain illuminated for more than 20 minutes with the ignition switch in the OFF position, the BCM will deactivate the inadvertent power supply voltage circuit to prevent a total battery discharge condition.

The battery voltage must be between 9.0-16.0 volts.

1. The inadvertent power supply voltage circuit to the reading lamps, underhood lamp, I/P compartment lamp, and both visor vanity mirror lamps is shorted to ground for more than 1 second.
2. There is a loss of the instrument panel fuse block TBC 2C battery supply voltage to the BCM for 1 second while one or more of the lamps in the inadvertent power circuit has been activated.

The reading lamps, underhood lamp, I/P compartment lamp, and both visor vanity mirror lamps will not operate.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTCs can be cleared using a scan tool.

Diagnostic Aids

Perform a visual inspection for loose or poor connections at all related components. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS .

The body control module (BCM) monitors the front fog lamp switch signal circuit in order to determine when the fog lamp relay is to be energized. When the BCM senses that the front fog lamp switch signal circuit is grounded momentarily by pressing the fog lamp switch, the BCM energizes the fog lamp relay by grounding the fog lamp relay control circuit.

The battery voltage must be between 9.0-16.0 volts.

When the front fog lamp switch signal circuit is shorted to ground for approximately 15 seconds.

The fog lamps will not operate.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTC(s) can be cleared using a scan tool.

1. Test the fog lamp switch for sticking in the ON position.
2. Perform a visual inspection for loose or poor connections at all related components. Refer to «TESTING FOR INTERMITTENT AND POOR CONNECTIONS»(ref-189004-S29378794532005091300000) .

Scheme 180

When the BCM senses that the front fog lamp switch signal circuit is grounded momentarily by pressing the front fog lamp switch, the BCM energizes the front fog lamp relay by grounding the front fog lamp relay control circuit. The front fog lamp indicator is also illuminated utilizing the same fog lamp relay control circuit.

The battery voltage must be between 9.0-16.0 volts.

1. When the BCM receives a front fog lamp switch OFF command and the front fog lamp relay control circuit is shorted to ground.
2. When the BCM receives a front fog lamp switch ON command and the front fog lamp relay control circuit is shorted to voltage or open.

The front fog lamps will not operate or will remain always on.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTC(s) can be cleared using a scan tool.

When the BCM senses that the rear fog lamp switch signal circuit is grounded momentarily by pressing the rear fog lamp switch, the BCM energizes the rear fog lamp relay by grounding the rear fog lamp relay control circuit. The rear fog lamp indicator is also illuminated utilizing the same fog lamp relay control circuit.

The battery voltage must be between 9.0-16.0 volts.

1. When the BCM receives a rear fog lamp switch OFF command and the rear fog lamp relay control circuit is shorted to ground.
2. When the BCM receives a rear fog lamp switch ON command and the rear fog lamp relay control circuit is shorted to voltage or open.

The rear fog lamps will not operate or will remain always on.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTC(s) can be cleared using a scan tool.

When the body control module (BCM) receives a voltage signal from the backup lamp switch requesting to illuminate the backup lamps, battery voltage is sent directly from the BCM through the backup lamp supply voltage circuit to the backup lamps.

Voltage for the backup lamp supply voltage circuit as well as the courtesy lamp supply voltage circuit is from the left instrument panel fuse block TBC 2B 15A fuse directly through the BCM to these circuits.

The battery voltage must be between 9.0-16.0 volts.

1. When the BCM receives a backup lamp request signal and the backup lamp supply voltage circuit is shorted to ground.
2. When the BCM is not receiving a backup lamp request signal and the backup lamp supply voltage circuit is open or shorted to voltage.
3. There is a loss of the instrument panel fuse block TBC 2B battery supply voltage to the BCM for 1 second.

The backup lamps will not operate.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTCs can be cleared using a scan tool.

1. Perform a visual inspection for loose or poor connections at all related components. Refer to «TESTING FOR INTERMITTENT AND POOR CONNECTIONS»(ref-189004-S29378794532005091300000) .
2. A short to ground on the backup lamp supply voltage circuit, courtesy lamp supply voltage circuit OR the TBC 2B battery positive voltage circuit to the BCM will open the TBC 2B fuse in the left instrument panel fuse block.

When the BCM senses a request for low beam headlamp illumination, the BCM sends a ground signal to the low beam headlamp relay through the headlamp low beam relay control circuit. The headlamp low beam relay will apply voltage to illuminate the headlamps.

The battery voltage must be between 9.0-16.0 volts.

1. When the BCM receives a command to illuminate the low beam headlamps and the headlamp low beam relay control circuit is open or shorted to voltage.
2. When the BCM does not receive a command to illuminate the low beam headlamps and the headlamp low beam relay control circuit is shorted to ground.

The low beam headlamps will not operate or will remain always on.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTC(s) can be cleared using a scan tool.

When the BCM receives a ground signal from the multifunction high beam or flash to pass (FTP) switch commanding to illuminate the high beam headlamps, the BCM will energize the high beam relay by grounding the high beam relay control circuit.

The battery voltage must be between 9.0-16.0 volts.

1. When the BCM receives a high beam headlamp OFF command and the high beam headlamp relay control circuit is shorted to ground.
2. When the BCM receives a high beam headlamp ON command and the high beam headlamp relay control circuit is shorted to voltage or open.

The high beam headlamps will not operate or will remain always on.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTCs can be cleared using a scan tool.

When the body control module (BCM) receives a ground signal from the headlamp switch commanding to illuminate the park lamps, the BCM will energize the park lamp relay by grounding the park lamp relay control circuit.

The battery voltage must be between 9.0-16.0 volts.

1. When the BCM receives a park lamp OFF command and the park lamp relay control circuit is shorted to ground.
2. When the BCM receives a park lamp ON command and the park lamp relay control circuit is shorted to voltage or open.

The park lamps will not operate or will remain always on.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTC(s) can be cleared using a scan tool.

The ambient light sensor is a light sensitive transistor that sends a variable voltage signal to the body control module (BCM) in response to the exterior light level. The BCM energizes the DRL relay by grounding the DRL relay control circuit. The DRL operate when the ambient light sensor indicates daytime, the ignition switch is in the RUN position, the gear selector is not in the park position, and the parking brake is in released. The DRL can be manually turned OFF by depressing the AHL/DRL DEFEAT switch in the headlamp switch. The AHL/DRL defeat switch sends a ground signal through the DRL switch signal circuit to the BCM. The BCM then turns OFF the DRL and turns ON the DRL OFF lamp in the headlamp switch by grounding the DRL OFF indicator control circuit.

The battery voltage must be between 9.0-16.0 volts.

1. When the BCM sends a DRL OFF command and the DRL relay control circuit is shorted to ground.
2. When the BCM sends a DRL ON command and the DRL relay control circuit is shorted to voltage or open.

The DRL will not operate or will remain always on.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTCs can be cleared using a scan tool.

The body control module (BCM) receives a variable voltage signal from the I/P dimmer switch requesting to illuminate the instrument panel controls illumination lamps to a desired intensity. When this occurs, the BCM directly sends a variable voltage based on the I/P dimmer switch position on the controls illumination lamps dimming control circuit and the instrument panel lamps dimming control circuit.

The battery voltage must be between 9.0-16.0 volts.

1. When the BCM receives a instrument panel controls illumination lamp request signal and the controls illumination lamps dimming control circuit or the instrument panel lamps dimming control circuit is shorted to ground.
2. When the BCM is not receiving a instrument panel controls illumination lamp request signal and the controls illumination lamps dimming control circuit or the instrument panel lamps dimming control circuit is shorted to voltage or open.

The instrument panel controls illumination lamps and the controls illumination lamps will not operate or are always ON.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTCs can be cleared using a scan tool.

Perform a visual inspection for loose or poor connections at all related components. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS .

The body control module (BCM) receives a ground signal from the door jamb, liftglass/liftgate, or courtesy lamp switches requesting courtesy/dome lamp illumination. When this occurs, the BCM directly sends a voltage through the courtesy lamp supply voltage circuit illuminating the courtesy/dome lamps.

Voltage for the courtesy lamp supply voltage circuit as well as the backup lamp supply voltage circuit is from the left instrument panel fuse block TBC 2B 15A fuse directly through the BCM to these circuits.

The battery voltage must be between 9.0-16.0 volts.

1. When the BCM receives a courtesy lamp illumination request signal and the courtesy lamp supply voltage circuit is shorted to ground.
2. When the BCM is not receiving a courtesy lamp illumination request signal and the courtesy lamp supply voltage circuit is open only to the first splice from the BCM or the circuit is shorted to voltage.
3. There is a loss of the instrument panel fuse block TBC 2B battery supply voltage to the BCM for 1 second.

The courtesy dome lamps will not operate or are always ON.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTCs can be cleared using a scan tool.

1. Perform a visual inspection for loose or poor connections at all related components. Refer to «TESTING FOR INTERMITTENT AND POOR CONNECTIONS»(ref-189004-S29378794532005091300000) .
2. An open circuit up to the first splice only, from the BCM, will set the DTC.
3. A short to ground on the backup lamp supply voltage circuit, courtesy lamp supply voltage circuit OR the TBC 2B battery positive voltage circuit to the BCM will open the TBC 2B fuse in the left instrument panel fuse block.

The BCM directly sends a 5 volt reference voltage to the I/P dimmer switch which is then adjusted based on the I/P dimmer switch position and returned as a dimming return and dimming input to the BCM. The BCM uses this signal to directly control the desired level of instrument panel illumination lamp intensity.

The battery voltage must be between 9.0-16.0 volts.

1. The BCM monitors a dimming return voltage of less than 4.5 volts.
2. The BCM monitors a 5 volt reference voltage of greater than 5.5 volts.
3. The BCM monitors dimming input voltage of equal or greater than 4.86 volts for more than 1 second.

The instrument panel illumination lamp dimming will not operate.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTCs can be cleared using a scan tool.

The body control module (BCM) receives a variable voltage signal from the instrument panel (I/P) dimmer switch requesting to illuminate the dimming lamps to a desired intensity. When this occurs, the BCM directly sends a pulse width modulated (PWM) voltage based on the I/P dimmer switch position through the LED dimming signal circuit to the various On/Off switches.

The battery voltage must be between 9.0-16.0 volts.

When the BCM receives a instrument panel lamps illumination request signal and the LED dimming signal circuit is shorted to ground.

The dimming lamps will not operate.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTC(s) can be cleared using a scan tool.

Perform a visual inspection for loose or poor connections at all related components. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS .

The body control module (BCM) monitors the ambient light sensor signal circuit in order to determine if the daytime running lights (DRL) or the auto headlights (ALC) should be turned ON in the AUTO mode. When the BCM senses the ambient light sensor voltage is between 1.75-4.9 volts, either the DRL will be commanded ON or the ALC will be commanded ON.

The system voltage must be between 9.0-16.0 volts.

1. When the ambient light sensor signal voltage is less than 1.75 volts.
2. When the ambient light sensor signal voltage is more than 4.9 volts.

The ALC will remain ON in any ambient light state.

1. This DTC will clear immediately after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. Use a scan tool in order to clear history and current DTCs.

The body control module (BCM) monitors the courtesy lamp switch signal circuit in order to determine when the courtesy/dome lamps should be illuminated. When the BCM senses that the courtesy lamp switch signal circuit is grounded when the switch is activated, the BCM will directly illuminate the courtesy/dome lamps.

1. The BCM instrument panel dimmer switch reference voltage must be between 4.5-5.5 volts.
2. The battery voltage must be between 9.0-16.0 volts.

1. When the instrument panel dimmer switch signal is greater than 1.0 volt.
2. When the BCM receives a courtesy lamp ON request signal from the courtesy lamp switch.

The courtesy/dome lamps will not operate.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTCs can be cleared using a scan tool.

1. Test the courtesy lamp switch for sticking in the ON position.
2. Perform a visual inspection for loose or poor connections at all related components. Refer to «TESTING FOR INTERMITTENT AND POOR CONNECTIONS»(ref-189004-S29378794532005091300000) .

Scheme 181

The body control module (BCM) monitors the park lamp switch signal circuit and the headlamp switch headlamps on signal circuit in order to determine when the park lamps and headlamps should be illuminated. When the headlamp switch is turned to PARK, the BCM senses that the park lamp switch signal circuit is grounded and the headlamps switch headlamps ON signal circuit is open. The BCM will then energize the park lamp relay illuminating the parklamps. When the headlamp switch is turned to HEAD, the BCM senses that the park lamp switch signal circuit and the headlamp switch headlamps ON signal circuit are grounded. The BCM will then energize the park lamp relay and headlamp low beam relay or high beam relay illuminating the park lamps and headlamps.

The battery voltage must be between 9.0-16.0 volts.

When the BCM receives the headlamps ON signal request without a park lamp ON signal request from the headlamp switch.

The park lamps will not operate or the headlamps will illuminate without the park lamps.

1. This DTC will clear on current status after the condition for setting the fault is corrected.
2. A history DTC will clear after 100 consecutive ignition cycles without a fault present.
3. History and current DTCs can be cleared using a scan tool.

Scheme 182

Scheme 183

1. Perform the «Diagnostic System Check-Lighting Systems»(ref-189006-S30936862522005091300000) before using the Symptom Tables in order to verify that all of the following are true: There are no DTCs set. The control modules can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following: «Exterior Lighting Systems Description and Operation»(ref-189006-S11869154332005091300000) «Interior Lighting Systems Description And Operation»(ref-189006-S21955135332005091300000)

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the Lighting System. Refer to «CHECKING AFTERMARKET ACCESSORIES»(ref-189004-S21780885952005091300000) .
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «Backup Lamps Always On»(ref-189006-S20134111122005091300000)
2. «Backup Lamps Inoperative»(ref-189006-S24078915842005091300000)
3. «Cargo Lamp Always On»(ref-189006-S26266860002005091300000)
4. «Cargo Lamp Inoperative»(ref-189006-S19191034822005091300000)
5. «Clearance Lamps Inoperative»(ref-189006-S27870999972005091300000)
6. «Courtesy Lamps Always On»(ref-189006-S25193007162005091300000)
7. «Courtesy Lamps Inoperative»(ref-189006-S10876917092005091300000)
8. «Daytime Running Lamps (DRL) Always On»(ref-189006-S02630752012005091300000)
9. «Daytime Running Lamps (DRL) Inoperative»(ref-189006-S20453192392005091300000)
10. «Fog Lamp Indicator Inoperative»(ref-189006-S24728230372005091300000)
11. «Fog Lamp Indicator Inoperative-Rear»(ref-189006-S13714842882005091300000)
12. «Fog Lamps Always On»(ref-189006-S09514128992005091300000)
13. «Fog Lamps Inoperative»(ref-189006-S35641983512005091300000)
14. «Fog Lamps Always On-Rear»(ref-189006-S20170428312005091300000)
15. «Fog Lamps Inoperative-Rear»(ref-189006-S13818137952005091300000)
16. «Hazard Lamps Always On»(ref-189006-S18996009072005091300000)
17. «Hazard Lamps Inoperative»(ref-189006-S02302233882005091300000)
18. «Headlamps Always On-Low Or High Beam»(ref-189006-S01147472222005091300000)
19. «Headlamps Inoperative-High Beams»(ref-189006-S17934423832005091300000)
20. «Headlamps Inoperative-Low Beams»(ref-189006-S08253500712005091300000)
21. «Headlamps Inoperative-Low and High Beams»(ref-189006-S42406021772005091300000)
22. «Headlamps Inoperative-Flash To Pass»(ref-189006-S38163301332005091300000)
23. «High Beam Indicator Always On»(ref-189006-S21334553982005091300000)
24. «High Beam Indicator Inoperative»(ref-189006-S21055010732005091300000)
25. «Interior Backlighting Does Not Dim»(ref-189006-S28826789072005091300000)
26. «Interior Backlighting Inoperative»(ref-189006-S27400964612005091300000)
27. «Instrument Panel (I/P) Compartment Lamp Inoperative»(ref-189006-S09894073612005091300000)
28. «Instrument Panel (I/P) Compartment Lamp Always On»(ref-189006-S35574124772005091300000)
29. «Park, License, And Tail Lamps Always On»(ref-189006-S19606172652005091300000)
30. «Park, License, And Tail Lamps Inoperative»(ref-189006-S23080480502005091300000)
31. «Reading Lamp(S) Inoperative»(ref-189006-S03725360102005091300000)
32. «Stop Lamps Always On»(ref-189006-S07526155812005091300000)
33. «Stop Lamps Inoperative»(ref-189006-S35869078702005091300000)
34. «Turn Signal Lamps And/Or Indicators Always On Or Flashing»(ref-189006-S25243618572005091300000)
35. «Turn Signal Lamps And/Or Indicators Inoperative»(ref-189006-S29663608002005091300000)
36. «Vanity Mirror Lamp(S) Inoperative»(ref-189006-S15517070922005091300000)

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Scheme 246

1. Disconnect the electrical connector from the stop lamp switch (2).
2. Remove the pushrod retaining clip (4).
3. Remove the stop lamp switch (2).

Scheme 247

1. Install the stop lamp switch (2).
2. Install the pushrod retaining clip (4).
3. Connect the electrical connector to the stop lamp switch (2).

Scheme 248

Scheme 249

1. Remove the instrument cluster bezel. Refer to «INSTRUMENT PANEL CLUSTER (IPC) REPLACEMENT»(ref-189012-S26867113352005091100000) .
2. Unsnap the switch from the housing.
3. Disconnect the electrical connectors.
4. Remove the switch.

Scheme 250

Scheme 251

1. Connect the electrical connectors.
2. Install the headlamp switch by snapping the headlamps switch into place.
3. Install the bezel to the instrument panel. Refer to «INSTRUMENT PANEL CLUSTER (IPC) REPLACEMENT»(ref-189012-S26867113352005091100000) .

Scheme 252

1. Remove the instrument panel bezel. Refer to «BEZEL REPLACEMENT-INSTRUMENT PANEL (I/P) CLUSTER»(ref-189012-S39787970842005091100000) .
2. Pull out the accessary switch housing.
3. Disconnect the electrical connectors.
4. Remove the head lamp leveling switch from the accessary switch housing.

Scheme 253

1. Install the head lamp leveling switch into accessary switch housing.
2. Connect the electrical connectors.
3. Install the accessary switch housing.
4. Install the instrument panel bezel. Refer to «BEZEL REPLACEMENT-INSTRUMENT PANEL (I/P) CLUSTER»(ref-189012-S39787970842005091100000) .

Scheme 254

1. Remove the instrument cluster bezel. Refer to «INSTRUMENT PANEL CLUSTER (IPC) REPLACEMENT»(ref-189012-S26867113352005091100000) .
2. Remove the fog lamp switch and cargo switch from the housing.
3. Disconnect the electrical connector(s) from the fog lamp switch.
4. Remove the fog lamp and cargo lamp switch from the housing.

Scheme 255

1. Connect the electrical connector(s) to the fog lamp and cargo lamp switch.
2. Install the fog lamp switch into the housing.
3. Install the IP trim bezel to the instrument panel. Refer to «INSTRUMENT PANEL CLUSTER (IPC) REPLACEMENT»(ref-189012-S26867113352005091100000) .

Scheme 256

1. Remove the instrument panel bezel. Refer to «BEZEL REPLACEMENT-INSTRUMENT PANEL (I/P) CLUSTER»(ref-189012-S39787970842005091100000) .
2. Pull out the accessary switch housing.
3. Disconnect the electrical connectors.
4. Remove the fog lamp switch from the accessary switch housing.

Scheme 257

1. Install the fog lamp switch into accessary switch housing.
2. Connect the electrical connectors.
3. Install the accessary switch housing.
4. Install the instrument panel bezel. Refer to «BEZEL REPLACEMENT-INSTRUMENT PANEL (I/P) CLUSTER»(ref-189012-S39787970842005091100000) .

Scheme 258

1. Remove the instrument panel top cover. Refer to «TRIM PANEL REPLACEMENT-INSTRUMENT PANEL (I/P) UPPER»(ref-189012-S24193601622005091100000) .
2. Disconnect the electrical connector (1) to the ambient light sensor on the underside of the IP top cover.
3. Turn the ambient light sensor 1/4 turn and remove it from the IP top cover.

Scheme 259

1. Install the ambient light sensor to the underside of the IP top cover, turning it 1/4 turn to secure it in place.
2. Connect the electrical connector (1) to the ambient light sensor on the underside of the IP top cover.
3. Install the instrument panel top cover. Refer to «TRIM PANEL REPLACEMENT-INSTRUMENT PANEL (I/P) UPPER»(ref-189012-S24193601622005091100000) .

Scheme 260

1. Remove the knee bolster. Refer to «KNEE BOLSTER REPLACEMENT»(ref-189012-S23438223692005091100000) .
2. On the back side of the fuse block release the retainer while pulling the flasher (1) outwards.
3. Remove the flasher (1) from the fuse block.

Scheme 261

1. Install the flasher (1) to the fuse block until the retainer clicks into place.
2. Install the knee bolster. Refer to «KNEE BOLSTER REPLACEMENT»(ref-189012-S23438223692005091100000) .

Scheme 262

Scheme 263

1. Use a flat-bladed tool in order to pry off the exterior courtesy lamp assembly.
2. Disconnect the electrical wires.
3. Remove the 2 retaining screws.
4. Remove the bulb.

Scheme 264

Scheme 265

1. Install the bulb. NOTE: Refer to «FASTENER NOTICE»(ref-175132-S17785009232005041500000) .
2. Install the 2 retaining screws. Tighten Tighten the screws to 2 N.m (17 lb in).
3. Connect the electrical wires.
4. Install the exterior courtesy lamp into the rear view mirror pressing into place until fully seated.

Scheme 266

1. Gently push the assembly toward the front edge of the door.
2. Lift the rear of the assembly from the door by using a small flat tool.
3. Remove the courtesy lamp/reflector from the door panel.
4. Twist and remove the socket container from the housing.
5. Remove the bulb from the socket (if replacement is required).

Scheme 267

1. Install the bulb into the socket.
2. Install the lens to the vehicle.
3. Install the bulb and socket assembly into the housing into the lens (if equipped).
4. Insert the tab on the assembly into the slot in the door panel at the front edge.
5. Pivot the assembly into the door panel.
6. Press the lens at the rear until the lens snaps into place.

Scheme 268

Scheme 269

1. Lower the instrument panel storage compartment door by pressing in the tab.
2. With one hand holding the plunger of the switch, use a small screw driver to push in the tabs on each side while pulling outwards.
3. Pull the switch assembly from the I/P.
4. Disconnect the electrical connector.
5. Remove the bulb (1).

Scheme 270

Scheme 271

1. Install the bulb (1) into the socket.
2. Connect the electrical connector.
3. Install the switch until the tabs (1) click in place.
4. Close the compartment door.

Scheme 272

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Scheme 274

1. Remove the lamp lens assembly using a small screw driver.
2. Remove the dome lamp assembly from the headliner.
3. Disconnect the electrical connector.
4. Remove the bulb.

Scheme 275

Scheme 276

1. Install the bulb.
2. Connect the electrical connector.
3. Install the dome lamp assembly into the headliner.
4. Press the lens into place.

Scheme 277

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Scheme 279

1. Disconnect the electrical connector.
2. Squeeze the lower tab. Remove the underhood lamp from the hood.
3. Remove the lens cover. Use a small flat bladed tool in order to pry the cover off.
4. Remove the bulb from the socket.

Scheme 280

Scheme 281

Scheme 282

1. Install the bulb to the socket.
2. Install the lens cover.
3. Install the underhood lamp to the hood.
4. Connect the in-line electrical connector.