Honda CR-V 1997 Service Manual page 340

PGM-FI System
Electrical Load Detector (ELD) (USA Modell
I
P1297
I
The scan tool indicates Diagnostic Trouble Code IDTC) P1297: A low voltage problem in the Electrical Load
Detector IELD) CIrCUit.
'97 model:
- DTC P1297 is stored.
Problem verification:
1. Do the PCM Reset Procedure.
2. Start the engine.
3. Turn on the headlights.
Intermittent failure, system is OK
"-
NO
at this time. Check for poor con·
Is
OTe
P1297 indicated?
/'
"ectio"s or loose wires at C127
(located on PCM bracket). C354
YES
(ELD) and at the PCM.
ELD 3P CONNECTOR IC354)
Check for short in the ELD:
Measure voltage between body
ground and the ELD 3P connector
terminal NO.3.
"-
YES
Is there approx. 4.5 V?
/'
Replace the ELD.
~ 23
EL
: IGRN/RED)
Wire side of female terminals
NO
Check for a short in the wire IEL
PCM CONNECTOR D 116P)
line):
1. Turn the ignition switch OFF.
2. Disconnect PCM connector D
234
116P).
7 8 1011
3. Check for continuity between
1314 16
body ground and PCM connec-
tor terminal 016.
EL
n
IGRN/RED)
Is there continuity?
"-
YES
I
Repair short in the wire between
I
the PCM IDI6) and the ELD.
Wire side of female terminals
NO
Substitute a known-good PCM
and recheck. H symptom/indica-
tion goes away, repl.ce the origi-
nal PCM.
11-138