Acura NSX 1997 Service Manual page 239

Main Menu
Idle Control System
Clutch Switch Signal (M/T) (cont'd)
(From page 11-125)
Is there approx. 5 V?
Clutch switch signal is OK.
Table of Contents
Check the clutch switch:
1. Turn the ignition switch OFF:
2. Disconnect the 3P connector
from the clutch switch.
3. Turn the ignition switch ON (II).
4. Measure voltage between ECM
connector terminals C4 and
A26 with the clutch pedal
depressed.
Is there approx. 5 V?
Check for a short in the wire
(MTCLS line):
1. Turn the ignition switch OFF.
2. Disconnect the ECM connec-
tor C (12P) from the ECM.
3. Check for continuity between
ECM connector terminal C4
and body ground.
Is there continuity?
Substitute a known-good ECM
and recheck (see page
immobilizer information). If pre-
scribed voltage is now available,
replace the original ECM.
Replace the clutch switch.
Repair short in the wire between
the ECM (C4) and the clutch
switch.
11-39 for