Acura 3.5 RL Manual page 439

(From page 11-148)
Check for an open in the wires
(IGP1, IGP2 lines):
1. Reconnect the PCM connector
A (26P).
2. Reconnect the PGM-FI main
relay 4P and 8P connectors.
3. Turn the ignition switch ON (II).
4. Measure voltage between
PCM connector terminals
A13, B1, and A12.
Is there battery voltage?
YES
Check for an open in the PCM:
1. Turn the ignition switch OFF.
2. Measure voltage between
PCM connector terminals A4
and A12 when the ignition
switch is first turned on for 2
seconds.
Is there 1.0V or less?
YES
Check the PGM-FI main relay
(see page 11-146).
Repair open in the wire
between the PCM (A13, B1)
NO
and the PGM-FI main relay.
Replace the PGM-FI main
relay.
Substitute a known-good PCM
and recheck (see page
NO
immobilizer information). If pre-
scribed voltage is now available,
replace the original PCM.
PCM CONNECTORS
Wire side of female terminals
11-42 for