1A-57 Engine General Information and Diagnosis: Bi-Fuel LPG model
DTC Confirmation Procedure
1) Turn ignition switch to ON position and keep it for 10 sec.
DTC Troubleshooting
DTC P0607
AENAR90A1104044
DTC Detecting Condition and Trouble Area
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 fuel injector power supply circuit check
1) Turn ignition switch to OFF position and then disconnect
connectors from LPG fuel injectors.
2) Check for proper terminal connection to LPG fuel
injector connectors.
3) If connections are OK, turn ignition switch to ON
position.
4) Check that voltage between LPG fuel injector power
supply circuits (B1, B2 and B3) and vehicle body ground
is battery voltage.
Is it in good condition?
Go to Step 3.
Repair or replace LPG
fuel injector power
supply circuit.
3
LPG fuel injector control circuit check
1) Turn ignition switch to OFF position and then 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 fuel injector
control circuits (D1, D2 and D3) are as follows.
• Wiring harness resistance of each LPG fuel injector
control circuit is less than 1
Ω
.
• Insulation resistance of each LPG fuel injector control
circuit between LPG fuel injector connector and
vehicle body ground is infinity.
• Insulation resistance of wire harness is infinity
between each LPG fuel injector control circuit terminal
and each terminal at LPG fuel injector connector.
• Voltage of each LPG fuel injector control circuit is 0 –
1 V with ignition switch in ON position.
Is it in good condition?
Go to Step 4.
Repair or replace LPG
fuel injector control
circuit.
4
LPG fuel injector check
1) Check LPG fuel injector.
Is it in good condition?
Substitute a known-
good LPG control
module and recheck.
Replace LPG fuel
injector.
DTC detecting condition
Trouble area
P0607: Control Module Performance
Any of the following conditions is met.
• Monitor voltage of LPG valve control relay is lower than
specified voltage for 3 sec. even if its command signal is output.
• Monitor voltage of LPG valve control relay is higher than
specified voltage for 3 sec. even if its command signal is not
output.
(1 D/C detection logic)
• LPG valve control relay (coil side) and/or its
circuit
• LPG control module
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