of catalytic converter 

condition 
detected. 

P0458 

Canister electromagnetic valve 
circuit is shorted to low voltage 
or open 

None 

No malfunction 
condition detected.

 

P0459 

Canister Solenoid Valve Circuit 
Short to High Voltage 

None 

Next key cycle, no 
malfunction 
condition detected.

P0480 

Low-Speed Fan Malfunction 

None 

No malfunction 
condition detected.

P0481 

High-Speed Fan Malfunction 

None 

Next key cycle, no 
malfunction 
condition detected.

P0502 

No signal from vehicle speed 
sensor 

Malfunctions Reported, 
Engine idle 

No malfunction 
condition detected.

P0506 

Idle Speed Low 

None 

No malfunction 
condition detected.

P0507 

Idle Speed High 

None 

No malfunction 
condition detected.

P0562 

System Voltage is Low 

Other Diagnostics 
Shielded; Idle Speed 
Increased; VCP 
Inoperative 

No malfunction 
condition detected.

P0563 

System Voltage is High 

Other Diagnostics 
Shielded; VCP 
Inoperative 

No malfunction 
condition detected.

P0601 

ROM Error 

Vehicle can not start. 

Next key cycle, no 
malfunction 
condition detected.

P0602 

ECM Processor Malfunction 

Vehicle can not start. 

Next key cycle, no 
malfunction 
condition detected.

P0604 

RAM Error 

Vehicle can not start. 

Next key cycle, no 
malfunction 
condition detected.

P0646 

Air-Conditioning Clutch Relay 
Circuit Short to Low Voltage or 
Open 

None 

No malfunction 
condition detected.

P0647 

Air-conditioning Clutch Relay 
Circuit Short to High Voltage 

None 

Next key cycle, no 
malfunction 
condition detected.

139

P0685 

Main Relay Malfunction 

Vehicle may not start. 

(1) Open Circuit, 
No Malfunction 
Condition 
Detected. (2) Short 
to power supply. 
Next key cycle, no 
malfunction 
condition detected.

P0633 

Anti-theft Does Not Learn 
Malfunction 

U0167 

No response of anti-theft 
device 

U0426 

Anti-theft Device 
Authentication Malfunction 

SVS lamp flashing; 
vehicle can not start. 

In the next Key 
Cycle, IMMO 
learns 
successfully. 

Or no malfunction 
condition is 
detected. 

140

2.2.7.9 Data Flow Table 

By reading the Data Flow Table on the fault diagnosis tester, you can inspect switches, sensors, 
actuators working state without dismantling any components. Before the control system diagnosis, 
observing and analyzing data is the first step, 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 is OFFposition。 

3.  Connect the fault diagnosis tester. 

4.  Rotated ignition switch in the ON position. 

5.  Select Engine/Read data stream. 

6.  Refer to the following table and inspect the data of each item. 

1.  First step: At cold engine, turn the key switch to ON position, inhibit the engine (for about 

30s) 

Data Stream Name 

Ignition Switch ON 

Idle speed 

2,500 rpm  时 

Engine Speed 

0 rpm 

800 rpm 

2,500 rpm 

Vehicle Speed 

0 

0 

0 

Current Computing Load 

0.00% 

100% 

100% 

Coolant Temperature 

93℃(199 ºF) 

93℃(199 ºF) 

93℃(199 ºF) 

Current Short-Term Fuel 
Adjustment (Bank1) 

100% 90.62% 

93.75% 

Current Long-Term Fuel 
Adjustment (Bank1) 

92.97% 92.97% 

99.22% 

Absolute Boost Pressure 

100kPa 

47kPa 

27kPa 

Intake Air Temperature 

54℃(129 ºF) 

47℃(117 ºF) 

52℃(126 ºF) 

Absolute Throttle Position A 

80.78% 

85.10% 

82.75% 

Ignition Voltage 

12.3V 

13.3V 

13.7V 

Oxygen Sensor #1 Installation 
Location 

Yes Yes 

Yes 

Oxygen Sensor #2 Installation 
Location 

Yes Yes 

Yes 

Front Oxygen Sensor Voltage 

0.08V 

0.07V-0.81V 

0.067V-0.81V 

Front Oxygen Sensor 
Short-Term Fuel Adjustment 

100% 92.19% 

94.53% 

141

Rear Oxygen Sensor Voltage 

0.71V 

1.28V 

0.68V 

Rear Oxygen Sensor Short-Term 
Fuel Adjustment 

99.22% 99.22% 

99.22% 

Current Instruction to Cylinder 
#1 Ignition Advance Angle 

4° 2° 

33° 

Vehicle Driving Distance When 
MIL Lamp Light 

0km 0km 

0km 

Relative Throttle Position 

6.27% 

1.57% 

3.92% 

Absolute Throttle Position B 

18.82% 

14.12% 

16.86% 

Acceleration Pedal Position D 

14.51% 

14.51% 

18.43% 

Acceleration Pedal Position E 

7.06% 

7.06% 

9.02% 

Throttle Position 

8.63% 

1.96% 

5.49% 

Vehicle Driving Time When MIL 
Lamp Light 

0Min 0Min 

0Min 

Air-conditioning pressure switch 
voltage 

0V 0V 

0V 

Front Oxygen Sensor Hot 

78mV 

143-706mV 

14mV 

Rear Oxygen Sensor Heating 

703mV 

755mV 

660mV 

Fuel Sensor Voltage 

5V 

5V 

5V 

Coolant Temperature (Start) 

87℃(189 ºF) 

87℃(189 ºF) 

87℃(189 ºF) 

EVAP Valve Duty Cycle 

0% 

0% 

0% 

Fuel Adjustment Cell 

19cell 

19cell 

2cell 

Target Idle Speed 

935rpm 

737rpm 

887rpm 

Injection 8 

. 

67ms 

2.56ms 

1,82ms 

Atmospheric Pressure 

100,37kPa 

100,37kPa 

100,37kPa 

Air-Fuel Ratio 

11.5 

14.5 

14.5 

Engine Running Time 

0Second 

0Second 

0Second 

Calculated Catalyst Temperature 

600℃(1112 ºF) 

498℃(928 ºF) 

591℃(1096 ºF) 

knocking Delay 

0° 

0° 

0° 

Cylinder No.2 Currently Misfire 

0count 

0count 

0count 

142