Basic Codes
Check Engine Light |
1 |
Normal Condition. |
2 |
Air Flow Meter signal. |
3 |
Ignition signal. |
4 |
Engine Coolant Temperature Sensor signal. |
5 |
Oxygen Sensor. |
6 |
RPM signal (Crank Angle Pulse). |
7 |
Throttle Position Sensor signal. |
8 |
Intake Air Temperature Sensor signal. |
9 |
Vehicle Speed Sensor signal. |
10 |
Starter signal. |
11 |
Switch signal. |
11 |
ECU/ECM. |
12 |
Knock Control Sensor signal. |
12 |
RPM signal. |
13 |
Knock Control CPU (ECM). |
13 |
RPM signal. |
14 |
Turbocharger Pressure. |
14 |
Ignition signal. |
21 |
Oxygen Sensor. |
22 |
Engine Coolant Temperature Sensor signal. |
23 |
Intake Air Temperature Sensor signal. |
24 |
Intake Air Temperature Sensor signal. |
25 |
Air-Fuel Ratio Lean. |
26 |
Air-Fuel Ratio Rich. |
27 |
Sub Oxygen Sensor signal. |
28 |
No. 2 Oxygen Sensor signal. |
31 |
Air Flow Meter signal (Vacuum Sensor signal). |
32 |
Air Flow Meter signal. |
34 |
Turbocharger Pressure signal. |
35 |
Turbocharger Pressure Sensor signal. |
35 |
HAC Sensor signal. |
41 |
Throttle Position Sensor signal. |
42 |
Vehicle Speed Sensor signal. |
43 |
Starter signal. |
51 |
Switch signal. |
52 |
Knock Sensor signal. |
53 |
Knock Sensor signal. |
54 |
Inter-cooler ECM signal. |
71 |
EGR System. |
72 |
Fuel Cut Solenoid signal. |
78 |
Fuel Pump Control signal. |
81 |
TCM Communication. |
83 |
TCM Communication. |
84 |
TCM Communication. |
85 |
TCM Communication. |
The Diagnostic Codes and Explanations are derived
from Manufacturer supplied Technical Data. WesTech does not guarantee the accuracy of this
Information nor can it be held liable for providing it. |