P1640
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Engine fails to start.
CHECK ENGINE.
Possible misfiring before DTC is generated.
Main Relay Circuit. No Voltage to Control Module pin 1.
Fault symptoms
|
•
|
Possible misfiring before DTC is generated.
|
On-Board Diagnostics
Type of diagnosis:
|
-
|
Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.
|
Enable criteria:
Fault criteria:
|
-
|
Main relay voltage below 3V for 1 s.
|
Dependents:
System reaction to a fault:
OK report:
|
-
|
Enable criteria fulfilled and fault criteria not fulfilled within 60 s.
|
Fault handling:
(See “Fault diagnosis, general” for more information.)
Diagnostic help
Fault diagnosis concerns electrical faults in connecting cables or in the relay.
Diagnostic tool functions related to this fault are:
|
•
|
Main relay voltage, in V.
|
See also the description of test values under ”Fault diagnosis, general” for more information.
Check the wiring
Jiggle the leads and in-line connectors at various points and in different directions to detect any intermittent breaks or short circuits in the wiring. Observe the multimeter, test lamp or diagnostic tool while doing this.
