XJR (X308) V8-4.0L SC (AJ26) (1998)
D3: CHECK RELAY SOCKET SUPPLY VOLTAGE
NOTE: Do not replace relay.
Ignition switch to position 0
Remove intercooler coolant pump relay
Inside ECM housing
Ignition switch to position 11
Check for battery voltage at relay socket between pins 3 and 2.
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B+ ?
Yes
GO to [D6]
No
GO to [D4]
D4: CHECK RELAY SOCKET SUPPLY CONTINUITY
NOTE: Install fuse F2. Do not replace relay.
Ignition switch to position 0
Remove engine management fuse F2
Measure the resistance between relay socket pin 3 and the load side of fuse F2.
-
Is the resistance < 0.5 Ohms?