Acura 3.5 RL Manual page 395

(From page 11-70)
Inspect No. 6 ECU (PCM) (20 A)
fuse in the under-dash fuse/relay
box.
Is the fuse OK?
Inspect No. 25 IG COIL (30 A) fuse
in the under-dash fuse/relay box.
Is the fuse OK?
YES
Check for an open in the wires
(IGP lines):
1. Disconnect the fuel injector
and IAC valve connectors.
2. Turn the ignition switch ON (II).
3. Measure voltage between
body ground and the PCM
connector terminals A13 and
B1 individually.
Is there battery voltage?
YES
(To page 11-72)
Repair short in the wire
between No. 6 ECU (PCM) (20
A) fuse and PGM-FI main
relay.
Repair short in the wire
between PGM-FI main relay
NO
and the PCM, fuel injectors,
or IAC valve.
Repair short in the wire
between fuel injectors and
IAC valve.
Replace No. 6 ECU (PCM) (20
A)fuse.
Repair short in the wire
between No. 25 IG COIL (30 A)
fuse and PGM-FI main relay.
Replace No. 25 IG COIL (30 A)
fuse.
Repair open in the wire(s)
between the PCM (A13, B9)
and PGM-FI main relay.
Check for a poor connection
or loose wires at the PGM-FI
main relay.
Test the PGM-FI main relay.
Repair short or open in the
wire between the immobilizer
unit and PCM.