Yesterday, 17:31:07
Hi, I’m having a problem on my 2010 1.6 Sri Astra J.
The cooling fan is running all the time, even on motorway driving, it won’t shut off.
I’ve had a diagnostic tester on and it flagged up the following code.
P0480 - Cooling Fan Relay 1 Control Circuit
So far I’ve replaced the following:
- the sensor at the bottom of the radiator
- the expansion tank (with sensor)
- the thermostat with built-in sensor
I’ve also checked the 3 relays for continuity and operation with 12v supply, and noted they all work perfectly off the car, which suggests when fitted one or more are receiving power.
I don’t have access to an electrical diagram for the cooling system, which is making further troubleshooting difficult.
Anyone have an idea what to do next?
The cooling fan is running all the time, even on motorway driving, it won’t shut off.
I’ve had a diagnostic tester on and it flagged up the following code.
P0480 - Cooling Fan Relay 1 Control Circuit
So far I’ve replaced the following:
- the sensor at the bottom of the radiator
- the expansion tank (with sensor)
- the thermostat with built-in sensor
I’ve also checked the 3 relays for continuity and operation with 12v supply, and noted they all work perfectly off the car, which suggests when fitted one or more are receiving power.
I don’t have access to an electrical diagram for the cooling system, which is making further troubleshooting difficult.
Anyone have an idea what to do next?