Conditions for Clearing the DTC
WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
- When the switch input status is analyzed to be non-malfunctioning by the BCM or the malfunction no longer exists, the code will be set as history.
- A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the malfunction.
or
DTC B3922
| Step |
Action |
Yes |
No |
Schematic Reference: Wiper/Washer System Schematics
Connector End View Reference: Wiper/Washer System Connector End Views |
| 1 |
Did you perform the Wiper-Washer Systems Diagnostic System Check? |
Go to Step 2 |
Go to Diagnostic System Check - Wiper/Washer |
| 2 |
- Install a scan tool.
- Turn ON the ignition, with the engine OFF.
- Using the scan tool observe the Wiper Washer Switch parameter in the input list.
- Rotate the wiper washer switch through all the positions.
Does the scan tool display the correct switch positions? |
Go to Testing for Intermittent Conditions and Poor Connections
in Wiring Systems |
Go to Step 3 |
| 3 |
- Remove the harness connector from the BCM that contains the Windshield Wiper Low and the Windshield Wiper High circuits.
- Remove the harness connector that contains the Windshield Wiper Low and Windshield Wiper High circuits from the windshield wiper/washer switch.
- Back the Windshield Wiper Switch Low signal circuit terminal from both harness connectors previously removed.
- Back the Windshield Wiper Switch High signal circuit terminal from both harness connectors previously removed.
- Reconnect both harness connectors with the removed circuits.
- With the ignition On and engine Off at the lose backed out terminals, test the Windshield Wiper Switch Low and Windshield Wiper Switch High signal circuits for a short to ground and short to B+.
Refer to Circuit Testing
in Wiring Systems.
- Turn the ignition the Off.
- Test the Windshield Wiper Switch Low and Windshield Wiper Switch High circuits for an open.
Refer to Circuit Testing
in Wiring Systems.
Did you find and correct the condition? |
Go to Step 9 |
Go to Step 4 |
| 4 |
- Remove the BCM harness connector.
- Back the ground circuit terminal out of the BCM harness connector that feeds the windshield wiper/washer switch.
- Remove the windshield wiper/washer switch harness connector.
- Remove the ground terminal from the wiper/washer switch harness connector.
- Reconnect the removed harness connectors.
- Test the backed out ground circuit between the wiper switch and the BCM harness connector for a short to B+, B- or open circuit.
Did you find and correct the condition? |
Go to Step 9 |
Go to Step 5 |
| 5 |
IMPORTANT:
Place the windshield wiper/washer switch in the corresponding mode position when testing the switch functionality.
- Reinstall the Windshield Wiper Switch Low, High and Ground signal circuits terminals back into the Windshield Wiper/Washer switch harness connector.
- Reconnect the windshield wiper switch harness connector.
- Remove the harness connector from the BCM containing the Windshield Wiper Switch Low signal circuit.
- Using a DMM test the resistance between the Ground circuit of the switch and the Windshield Wiper Switch Low signal circuit at the BCM harness connector.
Typical values +/- 20 percent are as follows:
- OFF = infinity ohms
- Mist = 332 ohms
- Low = 332 ohms
- High = 332 ohms
- Int.1 = 3,870 ohms
- Int.2 = 2,800 ohms
- Int.3 = 1,975 ohms
- Int.4 = 1,310 ohms
- Int.5 = 774 ohms
- Using a DMM test the resistance between the Ground circuit of the switch and the Windshield Wiper Switch High signal circuit at the BCM harness connector. This value should be 0-1 ohms.
or
Does the switch match the given values? |
Go to Step 7 |
Go to Step 6 |
| 6 |
Replace the Windshield Wiper/Washer Switch. Refer to Multifunction, Turn Signal Switch Replacement
in Steering Wheel and Column.
Did you complete the replacement? |
Go to Step 9 |
- |
| 7 |
Inspect for poor connections/terminal tension at the BCM harness connector. 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 9 |
Go to Step 8 |
| 8 |
Replace the BCM. Refer to Body Control Module Replacement
in Body Control Systems.Did you complete the replacement? |
Go to Step 9 |
- |
| 9 |
- Clear the DTCs using the scan tool.
- 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 |