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PGM-FI System
Electrical Load Detector (ELDI (USAI
The scan tool indicates Diagnostic Trouble Code (DTC) P1297: A low voltage problem in the Electrical Load
Detector (ELD) circuit.
ELD 3P CONNECTOR {C218)
Wire side of female termin€ls
Problem verification:
1- Do the ECM Reset Procedure.
2. Stan the engine.
3. Turn on headlights.
Int€rmittont failure. swtom b OK
at this time. Check tor poor con-
neqtions or loose wi.es at C218
IELDI and ECM-
ls DTC P1297 indicated?
Check for ao open in the wire
{lG1 linel:
1 . T u r n t h e i g n i t i o n a n d h e a d -
lights OFF.
2 . D i s c o n n e c t t h e E L D 3 P c o n -
nector,
3. Turn the ignition switch ON (ll).
4. Measure voltage betlveen body
ground and the ELD 3P connec
tor te.minal No.'1.
Repair op6n in the wire baiwe€n
No. 15 ALTERNATOR SP SENSOR
17.5 Al fus€ in the under-dash
luse/relay box and ELD.
Chock lor short in the wire {EL
line,:
Measure voltage between body
ground and the ELD 3P connector
t e r m i n a l N o . 3 .
ls there approx. 5 Vl
Check for a short in the wire (EL
linel:
1. Turn the ignition switch OFF.
2. Disconnect the ECM connector
D ( 1 6 P ) .
3. Check for continuity between
b o d y g r o u n d a n d E C M c o n -
nector terminal D16.
Sooair short in the wire between
ECM (D161 and ELD.
Substitut€ a known-9ood ECM
and recheck. It symptom/indica-
tion goes away, r€place the origi-
nal ECM.
EL
{GRN/REDI
ECM CONNECTOR D {16PI
Wire side oI Iemale tarminals
11 - 8 8
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Troubleshooting
