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.
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HOMESERVICE MANUALSCHEVROLET2005CHEVY EXPRESS G3500, VAN PASSENGER, LQ4REPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSOEM CONNECTOR END VIEWSHVAC CONNECTOR END VIEWSMED SPEED BLOWER MOTOR RELAY CONNECTOR END VIEW - AUXILIARY
2005 Chevrolet Chevy Express G3500, Van Passenger, LQ4
Med Speed Blower Motor Relay Connector End View - Auxiliary
2005 Chevrolet Chevy Express G3500, Van Passenger, LQ4SECTION Med Speed Blower Motor Relay Connector End View - Auxiliary
Med Speed Blower Motor Relay - Auxiliary (C36/C69)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A1 | OG | 1925 | Auxiliary Blower Motor Medium Control |
| A2 | L-BU | 1072 | Auxiliary Blower Motor Medium Control |
| B1-B2 | - | - | Not Used |
| C1 | RD/WH | 1740 | Battery Positive Voltage |
| C2 | BN | 341 | Ignition 3 Voltage |
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:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.