Diagnostic Aids

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The low beam or high beam headlamps must be ON in order to set this DTC.
An open PARK LP fuse will set this code.
If the DTC is a history DTC, the problem may be intermittent. Refer to Testing for Intermittent Conditions and Poor Connections .

DTC B2662

Step	Action	Yes	No
Schematic Reference: Exterior Lights Schematics
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, observe the Parklamp Switch parameter in the Exterior Lamps data list. Turn the low beam headlamps ON. Return the headlamp switch to the OFF position. Does the scan tool display toggle between ON and OFF?	Go to Testing for Intermittent Conditions and Poor Connections	Go to Step 3
3	Are the park lamps operating properly when the headlamp switch is turned ON and then OFF?	Go to Step 4	Go to Step 6
4	Test the signal circuit of the headlamp switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 5
5	Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 9
6	Test the battery positive voltage circuit of the headlamp switch for an open or short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 7
7	Test the park lamp signal circuit of the headlamp switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 8
8	Inspect for poor connections at the harness connector of the headlamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 10
9	Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?	Go to Step 11	-
10	Replace the headlamp switch. Refer to Turn Signal Multifunction Switch Replacement . Did you complete the replacement?	Go to Step 11	-
11	Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK