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4 RETIGHTEN GROUND SCREWS
1. Turn ignition switch OFF.
2. Loosen and retighten engine ground screws.
LEC518
䊳 GO TO 5.
5 CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT
1. Disconnect throttle position sensor harness connector.
AEC638A
2. Turn ignition switch ON.
3. Check voltage between sensor terminal 3 and ground with CONSULT-II or tester.
SEF630W
Voltage: Approximately 5V
OK or NG
OK 䊳 GO TO 6.
NG 䊳 Repair open circuit or short to ground or short to power in harness or connectors.
DTC P0120 THROTTLE POSITION SENSOR
VG33E
Diagnostic Procedure (Cont’d)
EC-767
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
GI
MA
EM
LC
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