P0380

Read the instructions below then start the fault diagnostic procedure.

Symptom: Starting difficulties when cold.

P0380

Fault symptoms

•	Starting difficulties when cold.

On-Board Diagnostics

Type of diagnosis:

-	Once per driving cycle.

Enable criteria:

-	Heating active.

Fault criteria:

-	When voltage on the input (pin 49) exceeds 4.0 V for more than 3s.

Dependents:

-

None.

System reaction to a fault:

-

None.

OK report:

-	Fault criteria not fulfilled for 3s.

Fault handling: (See section Fault handling III, other emissions-related components and functions for more information)

-

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:

-	Read value: Glow Request

-	Activate: Glow Request

See the description of read values under "Read Values" menu for more information.

See the description of activations under "Activate" menu for more information.

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.