Acura 3.5 RL Manual page 405

Idle Control System
Power Steering Pressure (PSP) Switch Signal
This signals the PCM when the power steering load is high.
Inspection of PSP switch signal.
Check for an open in the wire (PSP
SW line):
1. Turn the ignition switch ON (II).
2. Measure voltage between PCM
connector terminals B3 and A26.
Is there less than 1.0V?
YES
Check the operation of the PSP
switch:
1. Start the engine.
2. Turn steering wheel to full
lock.
3. Measure voltage between PCM
connector terminals B3 and A26.
Is there battery voltage?
YES
PSP switch signal is OK.
Check for an open in the wire (PSP
SW Iine):
1. Turn the ignition switch OFF.
2. Disconnect the PSP switch
connector.
NO
3. Turn the ignition switch ON (II).
4. At the wire side, connect the
PSP switch connector termi-
nals No. 1 and No. 2 with a
jumper wire.
5. Measure voltage between PCM
connector terminals B3 and A26.
Is there less than 1.0V?
YES
Replace the PSP switch.
NO
(To page 11-121)
PCM CONNECTORS
Wire side of female terminals
PSP SWITCH CONNECTOR (C120)
JUMPER
WIRE
Wire side of female terminals
— Repair open in the wire be-
tween the PCM (B3) and the
NO
PSP switch.
— Repair open in wire between
the PCM (D22) and the PSP
switch.