Where is the fog lamp relay on a GMC Sierra?

SEO B1 15A Instrument Panel Cluster (IPC), Rear Fog Lamp Relay. Overhead Console, Roof Beacon Switch LO HOLP-LT 10A Headlamp-Low Beam-Left, Headlamp Ballast-Left LO HDLP-RT 10A Headlamp-Low Beam-Right.

Where are the fuses on a GMC Sierra?

The underhood fuse block in the engine compartment on the driver’s side of the vehicle near the battery. Lift the cover for access to the fuse/relay block. To remove fuses hold the end of the fuse between your thumb and index finger and pull straight out.

Where is the ignition switch on a 2003 Avalanche?

IGN A 40A Ignition Switch RUN. START. RUN/START/ACCY LBEC 1 50A FLASH Fuse, TBC 2A Fuse. TBC 2B Fuse. TBC 2C Fuse. LT DOORS Fuse LR PARK 10A Exterior Lamps-Left Rear. Clearance Lamps-Left TBC BATT 10A Body Control Module (BCM). PASS-Key Module AUX PWR 20A Accessory Power Outlets. Auxiliary Power Outlets PCM 1 15A Powertrain Control Module (PCM).

What are the ignition coils on a GMC Sierra?

INJ 1 15A Fuel Injectors-Odd-Numbered. Ignition Coils-Odd-Numbered INJ 2 15A Fuel Injectors-Even-Numbered. Ignition Coils-Even-Numbered TRL B/U WA Body Control Module (BCM).

What is the diagnostic module on a GMC Sierra?

SIR 15A Inflatable Restraint Sensing and Diagnostic Module (SDM), Memory Seat Module-Passenger. Inside Reaview Mirror SEO ION 10A DEFOG Relay. Instrument Panel Cluster (IPC). Rear Object Sensor Control Module SEO B1 15A Instrument Panel Cluster (IPC), Rear Fog Lamp Relay.

What is The Defog relay on a Chevy Silverado?

SEO ION 10A DEFOG Relay. Instrument Panel Cluster (IPC). Rear Object Sensor Control Module SEO B1 15A Instrument Panel Cluster (IPC), Rear Fog Lamp Relay. Overhead Console, Roof Beacon Switch LO HOLP-LT 10A Headlamp-Low Beam-Left, Headlamp Ballast-Left

Where are the fuse panels on a GMC Sierra?

In this article, you will find fuse box diagrams of GMC Sierra 2014, 2015, 2016, 2017 and 2018, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Where are the power outlets on a Chevy Suburban?

LR PARK 10A Exterior Lamps-Left Rear. Clearance Lamps-Left TBC BATT 10A Body Control Module (BCM). PASS-Key Module AUX PWR 20A Accessory Power Outlets. Auxiliary Power Outlets PCM 1 15A Powertrain Control Module (PCM). Mass Air Flow (MFS) Sensor. Evaporative Emission (EVAP) Canister Purge Solenoid, Fuel Composition Sensor, Secondary Fuel Pump Relay

How to test the headlight switch on a GM pickup?

Wells Part # SW932. If this headlight switch tutorial does not apply to your GM pickup or SUV, there’s one more headlight switch tutorial for 1995 or newer GM pickups that you can find here: How To Test The Headlight Switch (4.3L, 5.0L, 5.7L). Contents of this tutorial: Symptoms Of A Bad Headlamp Switch.

What are the symptoms of a bad headlight switch?

Symptoms Of A BAD Headlight Switch. The most common and the most obvious symptom of a BAD headlight switch is that the headlights (headlamps) don’t come on when you turn the headlight switch on. You’ll also see: No park lights. No instrument cluster illumination.

When does the dimmer switch on the dash work?

The dimmer switch only works when the headlights are on, When they are off there is a light sensor on the dash that takes over and adjusts the dash lights as needed. It sounds like yours has gone out. Save Time & Money by instantly connecting to…

How to test the headlight switch battery circuit?

Circuit Descriptions Of The Headlight Switch Connector. TEST 1: Headlight Battery Power Circuit. TEST 2: Park Lamps Battery Power Circuit. TEST 3: Checking Checking Headlight Circuit. TEST 4: Checking The Park Lamps Circuit. TEST 5: Jumpering The Headlights Circuit. TEST 6: Jumpering The Park Lamps Circuit.