Changan CS35 User Manual

3.1.13-198
CS35 2013.04
3.1.13-198Electronic Control System - ME7
DTC P0444, P0458, P0459
1. DTC Description
2. Possible Sources
3. Diagnosis Procedures
Fault Code Description Definition
P0444
Carbon canister control valve
control circuit open circuit
Operating voltage of carbon canister control valve is
controlled by the main relay controlled by the ECM,
and battery voltage is transmitted to terminal 2 of
carbon canister control valve wiring harness con-
nector E21 through terminal 45 of engine compart-
ment electric center wiring harness connector C01
fuse EF23.
Control circuit: ECM controls the grounding of termi-
nal 1 of E21 through terminal 46 of ECM wiring har-
ness connector E01.
P0458
Carbon canister control valve
control circuit voltage too low
P0459
Carbon canister control valve
control circuit voltage too high
Fault
Code
Test Tactics
Setting Conditions (Control
Strategy)
Fault
P0444
Hardware or circuit
inspect
Open circuit
• Solenoid valve
• Solenoid circuit
•ECM
P0458 Short circuit to ground
P0459 Short circuit to power supply
Test Conditions Details/Results/Actions
1. Use the diagnostic tool to carry out carbon canister solenoid valve active test
A. Connect the diagnostic tool to "fault diagnosis
interface".
B. Disconnect the vacuum pipe from carbon canister
solenoid valve to active carbon canister.
C. Start the engine, open the diagnostic tool.
D. Enter the menu: "Changan Auto"/"CS35"/"UAES
ME788"/"Motion Test"/"Canister Control Valve".
E. Use the the diagnostic tool to open "carbon canister
control valve", cover the solenoid vacuum interface
with your fingers.
Is there vacuum suction?
Y
Intermittent fault.
Refer to: Intermittent Fault Diagnosis
(3.1.13 Electrical Control System - ME7,
Symptom Diagnosis and Testing).
N
Go to step 2.
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Changan CS35 Specifications

General

Brand	Changan
Model	CS35
Category	Automobile
Language	English