P2080

P2080

Diagnosis information - Control unit DME (DFI)

Exhaust temperature sensor Bank 1

Diagnostic conditions
- Cold start, at:
- Switch-off time (Ignition off) more than 6 hour(s)
- Engine temperature less than 30 °C (°F)
- Intake air temperature less than 50 °C (°F)
- Engine temperature max. 20 °C (°F) more than Intake air temperature
- Engine temperature max. 30 °C (°F) more than Ambient temperature

- Engine running

more than 10 Minute(s)
- none of the following faults stored: Switch-off time, Ambient temperature, Engine temperature or Intake air temperature

Possible fault causes
- Loose contact or corrosion on connectors or lines
- Short circuit to B+/ground/between lines or open circuit in the lines
- Exhaust temperature sensor Faulty

Fault setting condition(s)
- Exhaust gas temperature less than/more than Intake air temperature and Engine temperature --> Deviation too high, at:
- Cold start (See Diagnostic conditions)
or
- Exhaust gas temperature to Cold start --> increase too low
or
- Exhaust gas temperature (measured) less than/more than Exhaust gas temperature (Model) --> Deviation too high
or
- Exhaust gas temperature : Actual-value jumps more than 10 °C (°F) / 10 ms

Fault effects
- Substitute value = Exhaust gas temperature Bank 2 (Measured value) + Offset, at:
- 1 Exhaust temperature sensor defective

- Substitute value = Exhaust gas temperature (Model) + Offset, at:
- 2 Exhaust temperature sensor defective