1A-55 Engine General Information and Diagnosis: Bi-Fuel LPG model
DTC P0201 / P0202 / P0203
AENAR90A1104042
DTC Detecting Condition and Trouble Area
5
LPG pressure sensor signal 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 pressure sensor
signal circuit (B1) is as follows.
• Wiring harness resistance of LPG pressure sensor
signal circuit is less than 1
Ω
.
• Insulation resistance LPG pressure sensor signal
circuit between LPG pressure-and-temperature
sensor connector and vehicle body ground is infinity.
• Insulation resistance of wire harness is infinity
between LPG pressure sensor signal circuit terminal
and each terminal at LPG pressure-and-temperature
sensor connector.
• Voltage of LPG pressure sensor signal circuit is 0 – 1
V with ignition switch in ON position.
Are they in good condition?
Go to Step 6.
Repair or replace LPG
pressure sensor signal
circuit.
6
LPG Pressure-and-temperature sensor check
1) Check LPG pressure-and-temperature sensor. “LPG
MAP and Temperature Sensor Inspection (Bi-Fuel LPG
Model)”: in Section 1C
Is it in good condition?
Substitute a known-
good LPG control
module and recheck.
Replace LPG pressure-
and-temperature
sensor. “LPG MAP and
Temperature Sensor
Removal and
Installation (Bi-Fuel
LPG Model)”: in
Section 1C
Step
Action
Yes
No
DTC detecting condition
Trouble area
P0201: Injector Circuit/Open - Cylinder 1
Monitor voltage of LPG fuel injector No.1 is lower than specified
voltage for 5 sec. even if its command signal is not output.
(2 D/C detection logic)
• LPG fuel injector and/or its circuit
• LPG control module
P0202: Injector Circuit/Open - Cylinder 2
Monitor voltage of LPG fuel injector No.2 is lower than specified
voltage for 5 sec. even if its command signal is not output.
(2 D/C detection logic)
P0203: Injector Circuit/Open - Cylinder 3
Monitor voltage of LPG fuel injector No.3 is lower than specified
voltage for 5 sec. even if its command signal is not output.
(2 D/C detection logic)
Содержание Wagon R
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