02 Passat error code P1296

[FastM]

Emissions workshop error light. I had the error code read at a parts store. The error code is P1296. What is this error?

02 Passat with V6.

[boschmann]

It's a cooling system malfunction code. Either the car took too long to reach operating temp (like a stuck thermostat) or is getting bad readings from the temp sensor. It's the same unit as for the gauge but a different part sends a signal to the ECM, so the gauge ma read fine.

[bleedvw]

volkswgen has a huge problem with the coolant temperature sensors in alot of there cars. the coolant temperature sensor will read -40 degrees celcuis for a second or two and some times longer. this is what sets the fault code. have the coolant temperature sensor replaced the problem will be solved.

[FastM]

Thanks for the reply. The gage reads normal opperating temperature. I will replace the sensor and see what happens. Otherwise, the car runs fine.