EDC16 / P0400 21
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE lamp on.
EGR Actuator Circuit, Short to B+
Fault symptom
CHECK ENGINE lamp on.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| The control module output is active. |
Fault criteria:
| Output short circuit to B+ for more than 0.4 s. |
Dependent:
System reaction to a fault:
| EGR turned off in case of fault. |
Checking the wiring harness
Jiggle the wiring harness at several points to detect intermittent breaks or short circuits. Check also the connector for oxidation or loose pins.
Diagnostic help
Diagnosis regards:
| Electrical fault in connecting leads or component. |
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
