2.2.7.10 Action Test List 

With the reading of the action test on the fault diagnostic unit, check the working 
condition of the relay and the actuator controlled by the ECM without removing any 
parts. Before the control system diagnosis, carrying out action test is a prerequisite, so 
that the diagnose time could be shortened. 

Note: Data under normal conditions is listed in the following table for reference only. Do not 
determine whether a part is faulty solely based on these reference values. Under normal 
circumstances you can compare the vehicle that needs to be repaired with a normal working 
vehicle in the same state to determine whether the current vehicle diagnostic data is normal or 
not. 

1.  Run the engine to reach normal working temperature. 

2.  Rotated ignition switch to OFF position. 

3.  Connect the fault diagnosis tester. 

4.  Turn ignition switch to ON position. 

5.  Select engine / Action Test. 

6.  Refer to the following table for positive test. 

Diagnosis tester 

Display item 

Test Component 

Control 
Range 

Diagnostic Description 

Malfunction 
Indicator 

Enable the engine 
malfunction indicator. 

ON/OFF 

When the engine is running (or) the 
ignition switch is turned on, with the 
signal accepted, the engine control 
module will request the fault 
indicator to light through the CAN 
bus. The fault indicator will be on or 
off in 3-5s by the instrument. 

Fuel Pump Relay 

Enable the fuel pump 
relay. 

ON/OFF 

Note: Carry out this test only when 
the vehicle speed is equal to zero 
and the vehicle speed sensor has no 
fault. 

This function controls the fuel pump 
relay. Fuel pump relay will be 
ON/OFF within 3-5s. 

Canister Control 
Valve 

Enable the canister 
solenoid valve 

ON/OFF 

When the command is ON the 
solenoid valve will be on or off 
within 3-5s. 

Fan 1

 

Enable Low-speed 
Cooling Fan. 

ON/OFF 

Note: Carry out this test only when 
the engine coolant temperature is 
below 100°C and Air-Conditioning 
is not switched on. 

This function controls the 
Low-Speed cooling fan relay. When 
the instruction is received, the 
cooling fan will be on at high speed 
for 5 s. 

Fan 2

 

Enable the High-speed 
cooling fan 

ON/OFF 

Note: Carry out this test only when 
the engine coolant temperature is 
below 100°C and Air-Conditioning 

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is not switched on. 

This function controls the 
High-Speed cooling fan relay. 

When the instruction is 
received, the cooling fan will be 
on at high speed for 5 s.

 

Air-conditioning 
Clutch 

Enable the 
air-conditioning 
compressor clutch. 

ON/OFF 

Note: Carry out this test only when 
the ignition switch is at ON position 
and the engine is not running. 

This function controls 
Air-Conditioning compressor relay. 
When the instruction is ON, the 
Air-Conditioning compressor relay 
will be on or off in 35 s. 

BLM Learn 

Indicating Fuel 
Closed-Loop Learning

ON/OFF 

Forbid fuel closed-loop learning, 
when the ignition switch is ON; 
Based on the software logic, decide 
whether to conduct relevant learn 
when the ignition switch is OFF. 

Fuel Injector 
Nozzle 

Disable the fuel 
injector. 

ON/OFF - 

Ignition Delay 

Delay the ignition 
advance angle. 

--- 

--- 

Fuel Open-Loop 
Control 

ECM Open-Loop 
Control 

ON/OFF - 

Idle Catalyst 
Monitor 

Enable the catalyst 
monitor diagnosis 

ON/OFF - 

ETC Motor 

Control electronic 
throttle body 
movements 

0 、 50% 、
100% 

- 

Reset TPS 
Learning Value 

Clear throttle position 
sensor learn value 

- - 

Intake Camshaft 
Timing Device 

Be used for control the 
current phase position 
of the VVT, wherein 
the control parameter 
is not a percentage, but

Mark the phase. 

0 、 30% 、
60% 

- 

Intake Camshaft 
Timing Device 

Be used for control the 
current phase position 
of the VVT, wherein 
the control parameter 
is not a percentage, but

Mark the phase. 

0 、 50% 、
100% 

- 

Expected idle 

Intake Camshaft Valve  0

、

- 

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Timing Control 
Device VVT Control 
Valve Control Signal 
Duty Cycle Test 

Ratio Test 

700rpm 、
800rpm 、
900 rpm、
1,000 rpm 

BLM Reset 

Fuel Closed-Loop 
Learn 

On/off 

All fuel closed-loop learn values 
reset to 1 

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2.2.7.11 Learning on Crankshaft Position Sensor (CKP) 

Notes: 

After replacement of crankshaft position sensor, Replacement of ECM or engine, the crankshaft 
position sensor adaptive learn must be carried out. Otherwise the fault warning lamp will be 
always on, while ECM will record P1336 58-tooth gear tolerance does not learn    DTC code. 

Before the gear learn, the following conditions must be met: 

1.  Make sure engine cooling temeperature is above 60℃(140 oF) 

2.  Air-Conditioning switch is not turned on. 

3.  Start the engine for 10s. 

Carry out the following steps when the above conditions are met: 

1 

Connect a fault diagnosis tester. 

A.  Connect fault diagnosis tester to the data link connector. 

B.  Rotated ignition switch to ON position. 

C.  Start and run the engine at idle speed to warm up the engine for at least 5 min. 

D.  Select the engine/gear to learn. 

 

2 

Carefully read the instructions attached to scan tool and press confirm button. 

 

3 

Enter the learning screen, press start button. 

 

4 

Press the acceleration pedal to 80% of the full travel and keep the pedal 
position.

 

 

5 

Make the engine speed jumping back and forth between 1,300 rpm and 
4,500 rpm 3-5 cycles; maintain the engine speed at above 4,000 rpm.

 

 

6 

Release the acceleration pedal, turn the ignition switch to OFF position.

 

 

7 

Complete the learning, clear the DTC code. 

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