KlaroFault codeP2032
MODERATEExhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2)
What this code means
Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2).
“Bank 1” is the side of the engine that holds cylinder number 1; “Bank 2” only exists on V and flat engines. An in-line engine has a single bank.
P2032 is a generic code: it means the same thing on every make. P2032 belongs to family P20xx — Fuel, air and emission controls. Its page explains how to read a code and groups all its codes by part.
Type of fault
The control unit reads a voltage on this circuit below its expected range. Usual causes: a wire shorted to ground or broken, a corroded or loose connector, or the component itself. Check the wiring and connector before replacing the part — that is where many of these faults turn out to be.
Exhaust gas temperature sensor
Exhaust temperature sensors, often several on a diesel, measure the heat of the gases before the turbo, the catalytic converter or the particulate filter. The control unit uses them to protect the turbo and to manage the particulate filter regenerations.
What you notice
Often nothing; sometimes limp mode, or particulate filter regenerations that no longer happen.
How to check it
These sensors live in extreme heat and their wire often breaks near the exhaust. Check the connector and the wiring, then the sensor's resistance, comparing it with an identical sensor if there is one. Engine cold and stopped, every exhaust temperature should read about the same as the outside temperature.
Watch it live in Klaro
With an OBD2 adapter plugged in, these live readings show the part at work, when your car reports them:
- Exhaust gas temperature, bank 1 sensor 1
- Exhaust gas temperature, bank 1 sensor 2
- DPF inlet temperature, bank 1
What to do
Have it checked this week. The car remains usable, but the fault will not clear itself and will fail the roadworthiness test.
Clearing a code switches the light off but repairs nothing: if the fault remains, the code comes back. Clearing a fault code yourself →
How to read this code
- PPowertrain
- 2standardised code
- 0Fuel, air and emission controls
- 32P2032
