Lotus Evora - Crank Relay

Page 58
Lotus Service Notes Section EMR
Crank Relay
P0616 Starter relay voltage low
P0617 Starter relay voltage high
Description
When the ignition key is in the crank position battery voltage is applied to the start request input of the ECM.
The ECM will then energise the crank relay, via the immobiliser, to allow the starter motor to be engaged.
ECM diagnosis is only carried out on the crank relay.
Component connections
Relay Connector Description ECU Pin ECU Connector
2 Main relay via fuse R1 - -
4 Crank relay control G1 48 Way (Right)
Monitor:
• Continuous
Enable Criteria:
• Enginerunning
Disable Criteria:
• None
Potential failure modes:
• P0616–Crankrelaywiringopencircuitorshortedtoground
• P0616–FuseR1
• P0617–Crankrelaywiringshortedto12V
• Crankrelayfailure
• Immobiliserfailure
• ECUoutputcircuitfailure
Diagnostic Mask:
• Theservicelightwillbeilluminatedfor30secondsafterenginestartifthefaulthasbeenpresentforthe
previous two trips.
2009/02