Vanguard 25E300, Руководство по ремонту

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SPN 7753 Starter Motor Input Signal
Circuit Description
The ECM monitors the starter input command signal from the
key switch to the ECM. When the key switch is in the START
position, start voltage is sent from the key switch to the ECM.
This triggers the ECM to command the starter motor solenoid
to engage through the control circuit.
If the ECM receives a start signal request from the key switch
for an excessive amount of time, SPN 7753 will be triggered,
indicating an issue with the start signal request shorted
high (FMI 3). The ECM then disables the output voltage
commanded to the starter motor solenoid.
Possible FMIs - SPN 7753
The possible FMIs for SPN 7753 are as follows:
FMI Description
3 Input signal shorted high
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