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Specification data are reference values and are measured between each terminal and body ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
33 LG/B MIL
[Ignition switch “ON”] 0 - 1.0V
[Engine is running]
I Idle speed
BATTERY VOLTAGE
(11 - 14V)
Diagnostic Procedure
NFEC1262
1 CHECK MIL POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect combination meter harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between combination meter terminal 24 and ground with CONSULT-II or tester.
SEC050D
Voltage: Battery voltage
OK or NG
OK © GO TO 3.
NG © GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
I Fuse block (J/B) connector M19
I 10A fuse
I Harness for open or short between fuse block (J/B) and combination meter
© Repair harness or connectors.
3 CHECK MIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 33 and combination meter terminal 45.
Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK © GO TO 5.
NG © GO TO 4.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0650 MIL (CIRCUIT)
Wiring Diagram (Cont’d)
EC-459
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