Contents Wiring diagrams Section: Body Electrical All sections

Power Outlets: Overview Chevrolet Silverado 3500

Body Electrical 9 illustrations ~123 words

Scheme 119

Scheme 119: Cigar Lighter/Auxiliary Outlets Schematics

Scheme 120

Scheme 120

Scheme 121

Scheme 121

Scheme 122

Scheme 122

Scheme 123

Scheme 123

Scheme 124

Scheme 124: Power Outlet Component Views
CalloutComponent Name
1Ashtray Lamp Socket
2Bulb
3Ashtray Lamp Shield
4Instrument Panel
5Accessory Power Outlet
6Cigar Lighter Assembly

Scheme 125

Scheme 125
CalloutComponent Name
1Auxiliary Power Outlet Switch (HP2)

Scheme 126

Scheme 126
CalloutComponent Name
1Auxiliary Power Outlet 120-Volt AC - Interior (HP2)
2Energy Storage Box (ESB)

Scheme 127

Scheme 127
CalloutComponent Name
1Auxiliary Power Outlet 120-Volt AC - Exterior (HP2)

Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. 4: Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
  2. 5: The symptom list in Symptoms will determine the correct diagnostic procedure to use.
  3. 6: The presence of DTCs which begin with "U" indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed.
StepActionYesNo
1Did you perform the Battery Inspection/Test?Go to Step 2Go to Battery Inspection/Test (Non-HP2) Battery Inspection/Test (HP2)
2Install a scan tool. Does the scan tool power up?Go to Step 4Go to Scan Tool Does Not Power Up in Data Link Communications
3IMPORTANT: The engine may start during the following step. Turn OFF the engine as soon as you have observed the Crank power mode. Access the Class 2 Power Mode in the Diagnostic Circuit Check on the scan tool. Rotate the ignition switch through all positions while observing the Class 2 Power Mode on the Scan Tool. Refer to the Serial Data Power Mode table within the Body Control System Description and Operation in Body Control System for a list of the power mode states that correspond to each ignition switch position. Does the Class 2 Power Mode parameter reading match the ignition switch position for all the selected positions?Go to Step 4Go to Power Mode Mismatch in Body Control System
4Turn ON the ignition, with the engine OFF. Attempt to communicate with each module on the class 2 serial data circuit: The body control module (BCM) The driver information center (DIC) The instrument panel cluster (IPC) The powertrain control module (PCM) Does the scan tool communicate with any module on the class 2 serial data circuit?Go to Step 5Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications
5Select the Display DTCs function for each module. If using a Tech 2, use the Class 2 DTC Check feature in order to determine which modules have DTCs set. Record all of the displayed DTCs the DTC status and the module which set the DTC. Does the scan tool display any DTCs?Go to Step 6Go to Symptoms - Engine Electrical
6Does the scan tool display any DTC beginning with "U"?Go to Diagnostic Trouble Code (DTC) List in Data Link CommunicationsGo to Step 7
7Does the scan tool display any DTC beginning with "B"?Go to Diagnostic Trouble Code (DTC) List in Body Control SystemsGo to Diagnostic Trouble Code (DTC) List
IMPORTANT
The engine may start during the following step. Turn OFF the engine as soon as you have observed the Crank power mode.

Diagnostic System Check - Power Outlets