Acura NSX 1991 Manual page 241

Main Menu
Idle Control System
Automatic Transaxle (A/T) Gear Position Signal
(From page 11-121)
Check for an open in the wire:
1. Turn the ignition switch OFF.
2. Reconnect the 30P (C412) con-
nector to the gauge assembly.
3. Reconnect the 26P connector
to the TCM.
4. Start the engine.
5. Measure voltage between ECM
connector terminals B4 and
A26 with the transmission in
position.
Is there less than 1.0 V?
Check for an open in the wire:
Measure voltage between ECM
Connector terminals 84 and A26
with the transmission in
tion.
Is there less than 1.0 V?
A/T gear position signal is OK.
Table of Contents
— Repair open in the wire
between the ECM (B4) and the
gauge assembly.
— Repair open in GRN wire
between the gauge assembly
and the A/T gear position
switch.
posi-
Repair open in GRN/WHT wire
between the gauge assembly and
the A/T gear position switch.
ECM CONNECTORS
WIRE SIDE OF FEMALE TERMINALS