Repair manual

Engine Troubleshooting and Replacement CRT Repair
wc_tx000585gb.fm 140
8.10 Vanguard Engine Cranks but does not Start—Flowchart 2B
Repair wiring.
Repair wiring.
Is 12V
measured?
No
Ye s
Ye s
Check wiring
between key switch
and fuel relay.
Is Br/W
wire OK?
No
Ye s
No
Check for 12V* on pink wire at
terminals 85 & 30 of fuel relay.
See Checking Fuel Relay.
Is 12V
measured?
Ye s
Replace
fuel pump.
Check for 12V* on
P/W wire at fuel pump.
See Checking Fuel Relay.
No
Check 12V* on R/B wire
at ignition module.
See Checking Ignition Module.
Check continuity of Br/W wire between
fuel relay and ignition module.
See Checking Ignition Module.
Troubleshoot
ignition module.
See engine repair
manual.
Does
fuel pump
operate?
Ye s
No
Replace fuel
relay.
Connect a jumper wire between
terminal 86 of the fuel relay and ground.
Turn the ignition to ON and check for
12V* to fuel pump.
Continued from Flowchart 2A
wc_gr003418
* Battery voltage
approximately 12V
Is 12V
measured?