3.1.13-90
CS35 2013.04
3.1.13-90Electronic Control System - ME7
Active Test List
By reading the "Active Test List" on the diagnostic tool, do not remove any components, inspect the work
state of relay and actuator that controlled by ECM. Before the fault diagnosis of the engine electronic
control system. The implementation of active test is the precondition in troubleshooting, this can reduce
the troubleshooting time.
CAUTION: The following table lists the data under normal conditions, only for reference. Do
not determine the failure based on these standard values. Generally, use a normal vehicle to
compare a vehicle in diagnosis under the same state to determine the data of the diagnosis
vehicle uner the current state normal or not.
1. Let the engine reach normal operating temperature.
2. Turn the ignition switch to position "LOCK".
3. Connect the fault diagnostic tool.
4. Turn the ignition switch to position "ON".
5. Select "Changan Auto" / "CS35" / "UMC ME788 (AT)" / "action test".
6. Refer to the chart below, carry out active test.
Target torque change under the idle
speed control and expected torque cor-
rection idling control
0.0 % -0.2 % 0.0 %
Pre - catalytic oxygen sensor voltage 0.4 V 0.1 V 0.1 V
Post - catalytic oxygen sensor voltage 0.5 V 0.8 V 0.7 V
The actual intake manifold pressure sen-
sor voltage
3.9 V 1.1 V 0.8 V
Resistance torque self - learning value 0.0 % 98.8 % 98.9 %
Misfire range under minimum engine
speed
10,200 rpm 10,200 rpm 10,200 rpm
Misfire range under maximum engine
speed
0 rpm 0 rpm 0 rpm
Intake manifold switching conditions Off Off Off
Carbon canister control valve 0.0 % 11.7 % 0.0 %
Fuel pump relay Off On On
Cooling fan relay # 1 Off Off On
Cooling fan relay # 2 Off Off Off
A/C clutch Off Off Off
Throttle valve state Off Off On
Target idle speed 740 rpm 720 rpm 720 rpm
Data Flow Item Ignition Switch ON Idle Running
Engine Rotate
Speed 2,500
rpm
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