Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 510 (WIPER SYSTEM & WASHER SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESWINDSHIELD WIPER SYSTEM MALFUNCTIONCOMPONENT TESTINGTURN SIGNAL MULTIFUNCTION SWITCH
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Turn Signal Multifunction Switch
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Turn Signal Multifunction Switch
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 GMC Savana Special, 2009 GMC Savana Camper Special, 2009 GMC Savana, 2009 Chevrolet RV Cutaway, and 2009 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the X3 harness connector at the multifunction switch.
- With the wiper switch in the HIGH position, test for less than 2 ohms between the low reference terminal M and the signal terminal K.
- If greater than the specified range, replace the windshield wiper washer switch.
- While cycling the wiper switch through each delay and speed position, test for the specified resistance between the low reference terminal M and the signal terminal N.
IMPORTANT:
If the switch tests open in any switch position other than Off, test the signal circuits for a short to voltage before replacing the switch.
Wiper Switch Values
| Switch Position | Resistance |
|---|---|
| Off | Infinite |
| Mist | 300-364 Ξ© |
| Delay 1 | 3.48k-4.25k Ξ© |
| Delay 2 | 2.52k-3.08k Ξ© |
| Delay 3 | 1.78k-2.18k Ξ© |
| Delay 4 | 1.17k-1.44k Ξ© |
| Delay 5 | 697-851 Ξ© |
| Low | 300-364 Ξ© |
| High | 300-364 Ξ© |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.