Location of fog lamp fuse - 2003 Pontiac Grand Prix

The most likely cause is a 'short' in the wiring. Remove the light fitting and take a good look at the connections on the actual light fitting. Look for dirty or damaged parts. Check the wires and the connector blocks are clean, shiny and are not damaged. Then check the light fitting itself for damage. Check the seal where the light fitting fits against the bodywork. If moisture or water is getting past it can affect the lights.

System Description EKS0058X Control of the fog lamps is dependent upon the position of the combination switch (lighting switch). The lighting switch must be in the 2ND position or AUTO position (LOW beam is ON) for front fog lamp operation.When the lighting switch is placed in the fog lamp position the BCM (body control module) receives input signal requesting the fog lamps to illuminate. When the headlamps are illuminated, this input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The central processing unit of the IPDM E/R controls the front fog lamp relay coil. When activated, this relay directs power to the front fog lamps. OUTLINE Power is supplied at all times ? through 15A fuse [No. 43, located in the IPDM E/R (intelligent power distribution module engine room)] ? to front fog lamp relay, located in the IPDM E/R (intelligent power distribution module engine room) ? through 15A fuse [No. 34, located in the IPDM E/R (intelligent power distribution module engine room)] ? to CPU (central processing unit) in the IPDM E/R (intelligent power distribution module engine room). Power is also supplied at all times ? through 50A fusible link (letter f , located in the fuse and fusible link box) ? to BCM (body control module) terminal 55 ? through 10A fuse [No. 21, located in the fuse block (J/B)] ? to BCM (body control module) terminal 42. When the ignition switch is in ON or START position, power is supplied ? to ignition relay, located in the IPDM E/R (intelligent power distribution module engine room) ? through 10A fuse [No. 1 located in the fuse block (J/B)] ? to BCM (body control module) terminal 38. When the ignition switch is in ACC or ON position, power is supplied

Fuse 12--20 amp, under hood fuse block. Is there a two wire connector at fog lamp, if so, the black wire is ground and the other color is voltage, use a test light to check. I didn't check everything for fog lamp control, so if a switch, you may have to check that and wiring circuits.

There is also a relay ! FOG LP fuse # 11 10 amp location , under hood in the engine bay fuse / relay box . FOG LP relay #39 .

RR FOG LP relay #45 , RR FOG fuse #5 10 amp , location rear fuse box .
The fog lamp relays are computer controlled , by BCM

If it is a turn knob for lights just pull out on knob

Dodge does not use a fuse to control those lamps. Dodge uses a Totally Integrated Power Module or TIPM which controls the power to the lamps. This thing is located in the Engine Compartment in that big Fuse Box next to the engine. The unit is not a fuse but rather a self contained processor that regulates power to the Fog Lamps. This unit is replace as an assembly as it is not user serviceable. But before replacing it make sure the lamps actually work as simple as that is it is often overlooked. One more thing Dodge has employed the use of Circuit Breakers in the Wiring Harness so make sure they are working as well.

the fuse box is located below and to the left of steering wheel by the brake pedal remove cover use the fuse puller attached inside cover located fog lamp fuse should be number 9 , 15 amps replace with same amps . car should be off. [ if can't find fog lamp fuse it might be unlabled pull the unlable ones check if the are blown wire would be broken.

Hi Shawn, I'm glad to help! Unfortunately the "FOG LAMPS" or controlled by the TIPM under the hood. Something are controlled internally which is the case with your fog lamps. What you need to do is check power and ground at the fog lamp connector, if neither power or ground exsist then you'll need to take it in to the repair shop. If both power and ground is there then you need bulbs. Hope this helps and have an awesome day Shawn.

There are several things that can cause your fog lamps to not work. The fog lamp circuits need to be diagnosed. Your entire fog lamp circuit can be tested at the plug for the fog lamp relay located n the relay box.

PIN 5 on the relay should have battery power at all times. This power comes from Fuse #43 (15 Amp) in the fuse and fusible link box in the engine compartment. If there is power at this pin, the fuse and the circuit between the fuse and the relay is good.

PIN 3 on the relay goes to the fog lamp bulbs. There should be continuity to ground through the bulbs on this pin. If you have continuity to ground, connecting a jumper wire between PIN 5 and PIN 3 should make the fog lamps come on unless there is a short circuit to ground, which will cause Fuse #43 to blow. If there is no continuity to ground on this pin, the problem is either that BOTH fog lamp bulbs are burned out or there is a break in the wire between the relay and the bulbs.

PIN 1 Is the battery power for the primary coil in the relay. This power comes from the headlamp switch and power is only supposed to be present here when the headlamps are on and the dimmer switch is on LOW BEAM. If power is not present at this pin, the problem is a bad headlamp switch or an open circuit between the headlamp switch and the relay.

PIN 2 Is the control circuit for the primary relay coil. The control circuit should have continuity to ground when the fog lamp switch is set to the ON position. If there is no continuity to ground with the fog lamp switch on, the problem is a faulty fog lamp switch, an open between the relay and the fog lamp switch, or an open between the fog lamp switch and ground E37 (right front of engine compartment) and ground F7 (left rear of engine compartment) Please note: This circuit has redundant grounds....if one ground is not making good contact, the other ground can still make the circuit work.

PIN 4 on the relay is not used.

If all of the circuits/pins are working as described above, replace the relay.

That is pretty much it... That is all you really need to know to get your fog lamp circuits diagnosed. Let me know if you need further assistance.

Fog lamps are installed on the front bumper. The switch is located to the left of the steering column on the dash panel. The fog lamps are turned off by the circuit relay when the high beam driving lamps are turned on. The circuit relay is located on the right front wheelhouse panel near the blower motor.

Good luck, and remember rated this help.
Removal & InstallationFog Lamp Element
See Figure 1

Fig. 1: Exploded view of a fog lamp assembly

1. Remove the lamp stone shields, the four bezel attaching screws, and the bezel.
2. Remove the reflector assembly from the lamp body.
3. Remove the bulb holder from the assembly. Remove the element from the bulb.

DO NOT handle elements with your bare hands, always handle with a clean cloth. Oil from your hands will cause the element to fail.

1. Installation is the reverse of removal.

Fog Lamp Switch
The fog lamp switch is removed and installed by simply prying the switch from the instrument panel and unplugging the electrical connector.
FOGLAMP BEAM ADJUSTMENT

1. Position the vehicle on a level surface, facing a wall approximately 25 feet away. Remove the lamp stone shields and loosen the adjustment nuts.
2. Turn the fog lamps ON and adjust as follows:
   1. Distance between the light beam centers should be equal to the distance between the lamp assemblies on the bumper.
   2. Height of the light beams on the wall should be 4 inches less than the center of the lamp assemblies when mounted on the bumper.
      
3. Install all previously removed items after turning OFF the fog lamps.

1995 Cherokee Chassis Schematic


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