VOLVO
ECM-P208100 - Exhaust Gas Temperature Sensor Circuit Intermittent Bank 1 Sensor 1. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsC30 (2007–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–)
Show models by year and engine (9)
- Volvo C30 (2007–2013)2011–2013Engine D4162T only
- Volvo S40 (2004–2013)2011–2012Engine D4162T only
- Volvo S60 (2011–)2011–2015Engine D4162T only
- Volvo S80 (2007–)2012–2015Engine D4162T only
- Volvo V40 (2013–)2013–2015Engine D4162T only
- Volvo V40 Cross Country (2013–)2013–2015Engine D4162T only
- Volvo V50 (2004–2013)2011–2012Engine D4162T only
- Volvo V60 (2011–)2011–2015Engine D4162T only
- Volvo V70 (2008–)2012–2015Engine D4162T only
What does this fault code mean?
The code indicates an intermittent fault in the exhaust temperature sensor signal ahead of the catalytic converter. The ECM checks that the signal follows a calculated value, and the code is set when the signal is noisy.
Possible causes
- Contact resistance or oxidation in the connections
- Damaged exhaust temperature sensor ahead of the catalytic converter
What you can do
- 1Check that the fuses are intact
- 2Twist and wiggle the wiring and connectors at the sensor and see whether the signal becomes unsteady
- 3Check that the connections are secure and free from oxidation
- 4If you have a diagnostic tool: read the sensor value in live data with the ignition on and see whether it jumps
- 5If the fault is intermittent: check the sensor and its wiring carefully, and have a workshop read the code if it returns
Symptoms you may notice1
- Check engine warning lamp lights or behaves abnormally
What the fault can affect2
- No exhaust gas recirculation (EGR) control
- Soot particles are not burnt off
General guidance for car owners. Diagnosis on the car can point to a different cause.