Engine General Information and Diagnosis: Bi-Fuel LPG model 1A-58
Wiring Diagram
Refer to “DTC P0005 / P0007”: Bi-Fuel LPG model.
DTC Confirmation Procedure
1) Turn ignition switch to ON position and keep it for 10 sec.
DTC Troubleshooting
Step
Action
Yes
No
1
Was “Engine and Emission Control System Check”
performed?
Go to Step 2.
Go to “Engine and
Emission Control
System Check”: Bi-Fuel
LPG model.
2
LPG valve control relay ground circuit check
1) Turn ignition switch to OFF position and then remove
LPG valve control relay.
2) Check for proper terminal connection to LPG valve
control relay connector.
3) If connection is OK, measure resistance between LPG
valve control relay ground circuit (C1) and vehicle body
ground.
Is resistance 1
Ω
or less?
Go to Step 3.
Repair or replace LPG
valve control relay
ground circuit.
3
LPG valve control relay drive circuit check
1) Disconnect connectors from LPG control module.
2) Check for proper terminal connection to LPG control
module connectors.
3) If connections are OK, check that LPG valve control
relay drive circuit (B1) is as follows.
• Wiring harness resistance of LPG valve control relay
drive circuit is less than 1
Ω
.
• Insulation resistance of LPG valve control relay drive
circuit between LPG valve control relay connector and
vehicle body ground is infinity.
• Insulation resistance of wire harness is infinity
between LPG valve control relay drive circuit terminal
and each terminal at LPG valve control relay
connector.
• Voltage of LPG valve control relay drive circuit is 0 – 1
V with ignition switch in ON position.
Are they in good condition?
Go to Step 4.
Repair or replace LPG
valve control relay drive
circuit.
4
LPG valve control relay check
1) Check LPG valve control relay. Refer to “Control Relay
Inspection: “in related service manual mentioned in
foreword.
Is it in good condition?
Substitute a known-
good LPG control
module and recheck.
Replace LPG valve
control relay.
Summary of Contents for Wagon R
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Page 32: ...0B 5 Maintenance and Lubrication ...
Page 184: ...1J 3 Charging System ...