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INSTALLATION - CHMSL(1) Connect the wire harness connector.(2) Position the CHMSL on liftgate.(3) Install the screws attaching the CHMSL to the

liftgate.

COMBINATI ON FLASHER

DESCRIPTION

The combination flasher is located in the JunctionBlock (JB) (Fig. 6). The JB is located underneath thedr iver s ide of the ins t rument panel outboard of thesteering column. The combination flasher is a smartre lay th at funct ions as both the turn s ignal systemand the hazard warning sys tem f lasher. The combi-nat ion flasher contains active electronic IntegratedCircuitry (IC) elements. This flasher is designed to

handle the current flow requirements of the factory-installed l ighting. If supplemental l ighting is addedto the turn signal lamp circuits, such as when towinga t ra i ler with l ights , the combinat ion flasher wil lautomat ica l ly t ry to compensate to keep the flashra t e the same.

The combination flasher has nine blade-type termi-nals that connect i t to th e vehicle electrical system.Refer to the appropriate wiring informat ion.

Because of the active electronic elements withinthe combination flasher, it cannot be tested with con-ventional automotive electrical test equipment. If the

combination flasher is believed to be faulty, t est theturn s ignal system and hazard warning sys tem cir-cuits.(Refer to 8 - ELECTRICAL/LAMPS/LIGHTING- EXTERIOR - DIAGNOSIS AND TESTING - TURNSIGNAL & HAZARD WARNING SYSTEM). The com-bination flasher cannot be repaired or adjusted and,if faulty or damaged, i t must be replaced.

OPERATIONThe combinat ion flasher controls the fol lowing

inputs and output s: B(+), fused ignition switch out-put , le f t turn swi tch sense , r ight turn swi tch sense ,hazard swi tch sense , left front turn s ignal ci rcui t ,

r ight front turn s ignal c ircui t , left rear turn s ignalci rcui t and r ight rear turn s ignal c ircui t . Constantbat tery vol tage is supplied to the flasher so that i tcan perform the hazard warning funct ion, and igni-t ion switched battery voltage is supplied for the turnsignal function. However, when the flasher is idle nocurrent i s drawn through the module . The uni t doesnot become active until it is provided a signal groundfrom the turn s ignal switch, hazard warning swi tchor the Body Control Module (BCM).

The IC within the combination flasher (Fig. 7) con-tains the logic tha t controls the flasher operation andthe f lash ra te . When a bulb is burnt out , or when acircuit for a lamp is open, the turn signal flash ratewill increase. However, an open lamp circuit or burntout bulb does n ot change t he hazard warning flashra te .

Fig. 6 Combination Flasher 1 - COMBINATION FLASHER2 - JUNCTION BLOCK

WJ LAMPS/LIGHTING - EXTERIOR 8L - 7

CENTER HIGH MOUNTED STOP LAMP (Continued)

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COMBINATION FLASHER CIRCUITS

CAVITY CIRCUIT FUNCTION

1 L25 Fused B(+)2 L61 Left Front Turn Signal3 L60 Right Front Turn Signal4 L63 Left Rear Turn Signal5 L62 Right Rear Turn Signal6 F22 Fused Ignition Switch Output

7 L305 Left Turn Switch Sense8 L302 Right Turn Switch Sense9 L91 Hazard Switch Sense

Fig. 7 Combination Flasher

8L - 8 LAMPS/LIGHTING - EXTERIOR WJ

COMBINATION FLASHER (Continued)

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Turn s ignal inputs that actuate the combinat ionfla sher a re low cu r ren t g rounds, each d rawing amaximum of 300 mill iamperes .The hazard warningsignal input is a low current ground drawing a max-imum of 600 milliamperes.

REMOVAL

WARNING: ON VEHICLES EQUIPPED WITH AIR-BAGS, DISABLE THE AIRBAG SYSTEM BEFOREATTEMPTING ANY STEERING WHEEL, STEERINGCOLUMN, OR INSTRUMENT PANEL COMPONENTDIAGNOSIS OR SERVICE. DISCONNECT AND ISO-LATE THE BATTERY NEGATIVE (GROUND) CABLE,THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-TEM CAPACITOR TO DISCHARGE BEFORE PER-FORMING FURTHER DIAGNOSIS OR SERVICE. THISIS THE ONLY SURE WAY TO DISABLE THE AIRBAGSYSTEM. FAILURE TO TAKE THE PROPER PRE-

CAUTIONS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE PERSONALINJURY.

(1) Disconnect and isola te the bat tery negat ivecable.

(2) Remove t he steering column cover. (Refer to 23- BODY/INSTRUMENT PANEL/STEERING COL-UMN OPENING COVER - REMOVAL).

(3) Remove the combination flasher from the Junc-tion Block (JB) (Fig. 8).

INSTALLATION

WARNING: ON VEHICLES EQUIPPED WITH AIR-BAGS, DISABLE THE AIRBAG SYSTEM BEFOREATTEMPTING ANY STEERING WHEEL, STEERINGCOLUMN, OR INSTRUMENT PANEL COMPONENT

DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-LATE THE BATTERY NEGATIVE (GROUND) CABLE,THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-TEM CAPACITOR TO DISCHARGE BEFORE PER-FORMING FURTHER DIAGNOSIS OR SERVICE. THISIS THE ONLY SURE WAY TO DISABLE THE AIRBAGSYSTEM. FAILURE TO TAKE THE PROPER PRE-CAUTIONS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE PERSONALINJURY.

(1) Align the terminals of th e combination flasherwith the terminal cavities in the JB. (Fig. 8)

(2) P ush in firmly and evenly on the combinationflasher until the terminals are fully seated.

(3) Reinstall the steering column opening cover.(Refer to 23 - BODY/INSTRUMENT PANEL/STEER-ING COLUMN OPENING COVER - INSTALLA-TION).

(4) Reconnect t he ba tter y negative cable.

DAYTIME RUNNING LAMPMODULE

DESCRIPTIONThe Daytime Running Lights (Headlamps) System

is installed on vehicles manufactured for sale in Can-ada only. A separate module, mounted in the junctionblock under the dash, controls the DRL.

OPERATIONThe headlamps are i l luminated at a reduced inten-

s ity when the engine is running, headlamp swi tchoff, and the parking brake released.

REMOVAL(1) Lower the junction block. (Refer to 8 - ELEC-

TRICAL/POWER DISTRIBUTION/JUNCTIONBLOCK - REMOVAL) for service procedures.

(2) Remove th e m odule from t he junction block.

INSTALLATION(1) P osit ion the module in the junction block and

press to secure.(2) Install t he junction block. (Refer to 8 - ELEC-

TRICAL/POWER DISTRIBUTION/JUNCTIONBLOCK - INSTALLATION) for service procedures.

Fig. 8 Combination Flasher 1 - COMBINATION FLASHER2 - JUNCTION BLOCK

WJ LAMPS/LIGHTING - EXTERIOR 8L - 9

COMBINATION FLASHER (Continued)