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Diagnostic Procedure
NFEC1243
1 CHECK OVERALL FUNCTION
Check ASCD indicator under the following conditions.
MTBL1260
OK or NG
OK © INSPECTION END
NG © GO TO 2.
2 CHECK COMBINATION METER OPERATION
Check that combination meter operates normally.
OK or NG
OK © GO TO 3.
NG © Check combination meter circuit. Refer to EL-121.
3 CHECK INDICATOR CIRCUIT
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminals 24, 25 and ground with CONSULT-II or tester.
SEC028D
Battery voltage should exist.
OK or NG
OK © GO TO 5.
NG © GO TO 4.
4 DETECT MALFUNCTIONING PART
Check the following.
I Harness connectors F55, M162
I Harness for open or short between combination meter and ECM
© Repair open circuit or short to ground or short to power in harness or connectors.
5 CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-156.
© INSPECTION END
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ASCD INDICATOR LAMP
Diagnostic Procedure
EC-743
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