1A-45 Engine General Information and Diagnosis: Bi-Fuel LPG model
MIL Remains ON after Engine Starts
AENAR90A1104014
Wiring Diagram
Refer to “MIL Does Not Come ON with Ignition Switch in ON Position and Engine Stopped (but Engine Can Be
Started)”: .
Circuit Description
Refer to “MIL Does Not Come ON with Ignition Switch in ON Position and Engine Stopped (but Engine Can Be
Started)”: .
Troubleshooting
Unusable LPG (“AUTO
MODE” or “Forced LPG
MODE” can not be
selected)
Faulty shut off valve of LPG tank valve
“LPG Tank with Tank Valve On-Vehicle
Inspection”: LPG in Section 1G
Faulty shut off valve of LPG pressure
regulator
“LPG Pressure Regulator Inspection”: LPG in
Section 1G
Faulty fuel select switch
“Selector Switch Inspection (Bi-Fuel LPG
Model)”: in Section 9C
Faulty LPG valve control relay
Check LPG valve control relay
Faulty ECM
“Inspection of ECM and Its Circuit”: Bi-Fuel
LPG model
Faulty LPG control module
“Inspection of LPG Control Module and Its
Circuit”: Bi-Fuel LPG model
Unusable LPG (Fuel can
not change over to LPG in
“AUTO MODE”)
Faulty IAT sensor
“IAT Sensor Inspection”: in Section
Faulty ECT sensor
“ECT Sensor Inspection”: in Section
Faulty TP sensor
“TP Sensor On-Vehicle Inspection”: in Section
Faulty HO2S
“HO2S On-Vehicle Inspection”: in Section 1C
Faulty ECM
“Inspection of ECM and Its Circuit”: Bi-Fuel
LPG model
Faulty LPG control module
“Inspection of LPG Control Module and Its
Circuit”: Bi-Fuel LPG model
Condition
Possible cause
Correction / Reference Item
Step
Action
Yes
No
1
DTC check
1) Start engine and recheck DTC of ECM while engine
running.
Is there any DTC(s)?
Go to troubleshooting
for applicable DTC.
Substitute a known-
good combination meter
and recheck. If MIL still
remains ON, substitute
a known-good ECM and
recheck.
Содержание Wagon R
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