Honda Civic Service Manual page 780

Troubleshooting Flowchart - El Indicator Light On Constantly
PCM CONNECTOR A I32P)
Wire side of lemale terrnanals
PCM CONNECTOR D {16P)
ATP D'
2 5
6 1
e 11(
12
t {
I r o
(YELI
Wire side of female terminals
The Dll indicator lighi is on con-
stantly {not blinking) whenever
the ignition switch is ON (lll.
Moasure D4 IND Voltage:
1. Turn the ignition switch OFF.
2 . D i s c o n n e c t t h e A { 3 2 P } c o n -
nector from the PCM.
3. Turn the ignition switch ON (ll).
4. Measure the voltage between
t h e A 1 4 t e r m i n a l a n d b o d y
ground.
Repsir short to power in the wire
between the A14 torminal and
the gauge assembly.
Measure ATP D4 Voltagel
1. Turn the ignition switch OFF.
2. Connect the A (32P) connec
tor to the PCM.
3. Turn the ignition switch ON (ll).
4 . S h i t t t o a n y p o s i t i o n o t h e r
tha n [ql.
5. Measure the voltage between
t h e D 9 t e r m i n a l a n d b o d y
ground.
ls there approx. 5 V?
Test the A/T gear position switch
( s e e s e c t i o n 2 3 ) .
Check Ior a short to ground in
the wire betweon the D9 termi-
nal and A/T gear position switch.
It wire is OK, substitute a known-
good PCM and recheck.