C32 2002 coolant light
Thread Starter
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Joined: Oct 2019
Posts: 9
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C32
C32 2002 coolant light
Right had to set up a new account so I can post on here. Hi everyone hope you can help.
charging the battery on my car today. Came up saying check coolant.
Gauge showing a temp of 85c
checked coolant and it was fine.
Plugged in my Bosch scanner. Connected to the air on ecu.
coolant temp 103 and rising.
no coolant fan kicking in.
Turned the air on on to see if the fan works.
And checked actual values. Triggered in at 20 percent. But shortly goes off.
so did a actuator test on the radiator fan.
Does not work while doing the test.
so I unplugged the coolant temp sensor. No fan working and bridged it still nothing.
i checked for supply. I unplugged the fan control unit. Two main feeds one with a 12 supply. Also swapped the feeds and had a earth on the other main supply.
Two smaller wires. Same one with a 12v feed.
can anyone help before I start buying fan units because seem to be hard to find. Also big bucks.
Cheers in advance
charging the battery on my car today. Came up saying check coolant.
Gauge showing a temp of 85c
checked coolant and it was fine.
Plugged in my Bosch scanner. Connected to the air on ecu.
coolant temp 103 and rising.
no coolant fan kicking in.
Turned the air on on to see if the fan works.
And checked actual values. Triggered in at 20 percent. But shortly goes off.
so did a actuator test on the radiator fan.
Does not work while doing the test.
so I unplugged the coolant temp sensor. No fan working and bridged it still nothing.
i checked for supply. I unplugged the fan control unit. Two main feeds one with a 12 supply. Also swapped the feeds and had a earth on the other main supply.
Two smaller wires. Same one with a 12v feed.
can anyone help before I start buying fan units because seem to be hard to find. Also big bucks.
Cheers in advance
Thread Starter
Newbie
Joined: Oct 2019
Posts: 9
Likes: 0
C32
Right I’ve got the car running the fan kicks in at temp. Coolant light comes on and turns the fan off.
fan runs only at low speed.
disconnected the air on pressure sensor the fan runs straight away but low speed.
Does that work out that the fan is faulty as is no high speed
fan runs only at low speed.
disconnected the air on pressure sensor the fan runs straight away but low speed.
Does that work out that the fan is faulty as is no high speed
