1A-51 Engine General Information and Diagnosis: Bi-Fuel LPG model
7
Shut off valve of LPG pressure regulator power supply
circuit check
1) Turn ignition switch to OFF position and then disconnect
connector from shut off valve of LPG pressure regulator.
2) Remove LPG valve control relay.
3) Check for proper terminal connection to LPG valve
control relay and shut off valve of LPG pressure
regulator connectors.
4) If connections are OK, measure wiring harness
resistance of shut off valve of LPG pressure regulator
power supply circuit (A3).
Is resistance 1
Ω
or less?
Go to Step 8.
Repair or replace shut
off valve of LPG
pressure regulator
power supply circuit.
8
Shut off valve of LPG pressure regulator control 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 shut off valve of LPG
pressure regulator control circuit (B3) is as follows.
• Wiring harness resistance of shut off valve of LPG
pressure regulator control circuit is less than 1
Ω
.
• Insulation resistance of shut off valve of LPG pressure
regulator control circuit between shut off valve of LPG
pressure regulator connector and vehicle body ground
is infinity.
• Insulation resistance of wire harness is infinity
between shut off valve of LPG pressure regulator
control circuit terminal and each terminal at shut off
valve of LPG pressure regulator connector.
• Voltage of shut off valve of LPG pressure regulator
control circuit is 0 – 1 V with ignition switch in ON
position.
Are they in good condition?
Go to Step 9.
Repair or replace shut
off valve of LPG
pressure regulator
control circuit.
9
Shut off valve of LPG pressure regulator check
1) Check shut off valve of LPG pressure regulator. “LPG
Pressure Regulator Inspection”: LPG in Section 1G
Is it in good condition?
Substitute a known-
good LPG control
module and recheck.
Replace LPG pressure
regulator. “LPG
Pressure Regulator
Removal and
Installation”: LPG in
Section 1G
Step
Action
Yes
No
Summary of Contents for Wagon R
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Page 184: ...1J 3 Charging System ...