P0119

P0119

Engine Coolant Temperature Circuit. Intermittent Open / Short.







Fault symptoms
- CHECK ENGINE.
- A/C malfunctioning.
- Radiator fan running continuously when ignition is ON.
- Temperature gauge displaying incorrect value.
- Possibly starting difficulties or misfiring before DTC generated.

On-Board Diagnostics

Type of diagnosis:
- Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.

Enable criteria:
- General condition for this diagnostic trouble code: Atmospheric pressure must exceed 72 kPa as well as coolant and intake air temperature must exceed -7 degree C.

Fault criteria:
- Average difference between the 5 measurements exceeds 10 degree C

Dependents:
- None.

System reaction to a fault :
- A substitute value is calculated continuously as follows: Starting intake air temperature is incremented with 1 degree C per 60 g air mass/s. The value is maximized to 90 degree C and is used as soon as fault criteria for the sensor are fulfilled.

OK report:
- Enable criteria fulfilled without fault reports.

Fault handling: (For more information, Fault Handling III, Other Emission-Related Components and Function)

- Type III.

Diagnostic help
Fault diagnosis concerns an electrical fault in connecting leads or in the sensor.

Functions in the diagnostic tool related to the fault:
- Diagnostic status for the diagnosis.
- Temperature sensor value, unit degree C.

For more information, refer to scan tool testing. Menu Read Values

Checking the wiring
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Observe the multimeter, diagnostic tool or test lamp during the check.