P1640
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Engine fails to start.
CHECK ENGINE.
Misfiring can occur before trouble code is generated.
Main Relay Circuit. No Voltage to Control Module pin 1.
Fault symptoms
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Misfiring can occur before trouble code is generated.
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On-Board Diagnostics
Type of diagnosis:
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Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.
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Enable criteria:
Fault criteria:
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Main relay voltage below 3 V for 1 s.
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Dependents:
System reaction to a fault:
OK report:
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Enable criteria fulfilled and fault criteria not fulfilled within 60 s.
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Fault handling:
(See section
Fault handling III, other emission-related components and functions
for more information.)
Diagnostic help
Fault diagnosis concerns electrical fault in connecting leads or in the relay.
Functions in the diagnostic tool related to the fault:
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Main relay voltage, in V.
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See also description of read value under
"Read Values" menu
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.
