Acura NSX 1991 Manual page 239

Main Menu
Idle Control System
Alternator (ALT) FR Signal
(From page 11-119)
Check for an open in the wire:
1. Turn the ignition switch OFF.
2. Disconnect the negative battery
cable from the battery.
3. Disconnect the ECM connec-
tor D (22P) from the ECM.
4. Disconnect the GRN 4P con-
nector from the ALT.
5. Connect No. 2 terminal to body
ground with a jumper wire.
6. Check for continuity between
ECM connector terminal D5
and body ground.
Is there continuity?
See the ALT inspection (see
section 23).
Table of Contents
Repair open in the wire between
the ECM (D5) and the ALT.
ALT GRN 4P CONNECTOR
WIRE SIDE OF FEMALE TERMINALS
ECM CONNECTOR D (22P)
WIRE SIDE OF FEMALE TERMINALS