Test B: Powertrain Control Module (PCM) Power Relay
PINPOINT TEST B: POWERTRAIN CONTROL MODULE (PCM) POWER RELAY
This pinpoint test is intended to diagnose the following:
^ harness circuits: PCMRC ISP-R
^ vehicle power
^ ignition start/run
^ PCM power relay ground
^ battery positive voltage
^ PCM power relay (12A646)
^ PCM (12A650)
Note: The IGN START/RUN and ground circuits or the B+ and VPWR circuits may be reversed in the harness connector. Refer to the W~nng Diagrams Manual Electronic Engine Control Cell for schematic and connector information.
B1 - B3:
B4 - B5:
B6:
B7 - B8:
B9 - B10:
B11 - B12:
B13 - B14:
B15 - B16:
