E39 / P0629 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Malfunction Indicator Lamp The engine may not start.

P0629 00

Fault symptom

Malfunction Indicator Lamp

The engine may not start.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Engine Stopped

Fuel pump NOT active.

Fault criteria:

Control module output short-circuit to B+.

OK report:

Diagnostics carried out without fault reported.

Fault handling:

Type III

(See section Fault handling III, "Other emission-related components and functions" for more information.)

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:

•

Fuel Pump

Activation:

•

Fuel Pump

(See also description of readings/activations in diagnostic tool)