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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 193 (Power Outlets) >> Diagnostic Information and Procedures >> Power Outlet Receptacle Inoperative (120 AC Volts) >> Test Description

Test Description

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic path.

  1. 5:  This step tests the plug inserted switch, located internally in the 120-volt power receptacle, for an open.
Power Outlet Receptacle Inoperative (120 AC Volts) Test Description

Step Action Values Yes No
Schematic Reference:  Cigar Lighter/Auxiliary Outlets Schematics  
Connector End View Reference: Power Outlet Connector End Views 
DEFINITION: This table diagnoses an inoperative AC/DC power outlet control module and the 120-volt power receptacle.
1 Did you perform the Diagnostic System Check - Vehicle? - Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2
  1. Turn OFF the ignition.
  2. Disconnect C2.
  3. Connect a test lamp between the battery positive voltage circuit and a good ground.
Does the test lamp illuminate?
- Go to Step 3  Go to Step 10 
3 Connect a test lamp between the battery positive voltage circuit and the AC/DC power outlet control module ground circuit.
Does the test lamp illuminate?
- Go to Step 4  Go to Step 12 
4
  1. Disconnect the 120-volt power receptacle.
  2. Turn the ignition ON.
  3. Connect a test lamp between the ignition 3 voltage circuit and a good ground.
Does the test lamp illuminate?
- Go to Step 5  Go to Step 15 
  1. Insert an AC voltage powered device into the 120-volt power receptacle.
  2. Measure the resistance of the 120-volt power receptacle between the ignition 3 voltage circuit and the 120 VAC inverter control circuit
Does the resistance value measure within the specified value?
0.1-0.8 Ω Go to Step 6  Go to Step 17 
6
  1. Turn OFF the ignition.
  2. Disconnect C1.
  3. With a DMM, measure the resistance of the 120 VAC inverter control circuit between C1 and the 120-volt power receptacle connector.
Does the resistance measure less than the specified value?
1 Ω Go to Step 7  Go to Step 11 
7 With a DMM, measure the resistance of the APO phase circuit between C1 and the 120-volt power receptacle connector.
Does the resistance measure less than the specified value?
1 Ω Go to Step 8  Go to Step 14 
8 With a DMM, measure the resistance of the APO neutral circuit between C1 and the 120-volt power receptacle connector.
Does the resistance measure less than the specified value?
1 Ω Go to Step 9  Go to Step 13 
9 Inspect for poor connections at the harness connector of the AC/DC power outlet control module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 18  Go to Step 16 
10 Repair the following in the battery positive voltage circuit:
  • Open
  • Short to Ground
  • High Resistance

Refer to Wiring Repairs and Circuit Testing in Wiring Systems.
Did you complete the repair?
- Go to Step 18  -
11 Repair the open or the high resistance in the 120 VAC inverter control circuit. Refer to Wiring Repairs and Circuit Testing in Wiring Systems.
Did you complete the repair?
- Go to Step 18  -
12 Repair the open or the high resistance in the AC/DC power outlet control module ground circuit. Refer to Wiring Repairs and Circuit Testing in Wiring Systems.
Did you complete the repair?
- Go to Step 18  -
13 Repair the open or the high resistance in the APO neutral circuit. Refer to Wiring Repairs and Circuit Testing in Wiring Systems.
Did you complete the repair?
- Go to Step 18  -
14 Repair the open or the high resistance in the APO phase circuit. Refer to Wiring Repairs and Circuit Testing in Wiring Systems.
Did you complete the repair?
- Go to Step 18  -
15 Repair the following in the ignition 3 voltage circuit:
  • Open
  • Short to Ground
  • High Resistance

Refer to Wiring Repairs and Circuit Testing in Wiring Systems.
Did you complete the repair?
- Go to Step 18  -
16 Replace the AC/DC power outlet control module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup and programming.
Did you complete the replacement?
- Go to Step 18  -
17 Replace the 120-volt power receptacle. Refer to 120 Volt Receptacle Replacement .
Did you complete the replacement?
- Go to Step 18  -
18 Operate the system in order to verify the repair.
Did you correct the condition?
- System OK Go to Step 2