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ECU Fault Codes

Quick reference to the Link ECU fault and error codes

Also available on screen in PCLink Help, the following list shows possible ECU fault codes, causes of ECU faults and errors, and recommended solutions.

If a fault is displayed that is not listed, contact your dealer for further advice. You can use Find (Ctrl F) in PCLink to find the fault code. ECU fault codes are displayed in PCLink in the ECU Status runtime values. They may also be displayed on a Check Engine Light or a digital dashboard display. Fault codes can be cleared by selecting Clear Fault Codes in the ECU Controls drop down menu. This list will be updated as new fault conditions are added. Also check all PCLink runtime values for real time information on ECU parameters.

Code
DescriptionCauseSolution
0No FaultEverything is OK!None
1RPM LimitRPM limit reachedThe RPM limit was activated
This fault may occur as part of normal operation if RPM Limit Fault code is enabled
2MAP LimitMAP limit reachedThe MAP limit was activated
This fault may occur as part of normal operation if MAP Limit Fault code is enabled
10An V1 at 5VThe voltage at the analog input pin has been above the Error High voltage for longer than one secondSensor may be faulty
13An V2 at 5VTemp channel sensor disconnected
16An V3 at 5VFault Settings incorrect
19An V4 at 5VSensor voltage is going to 5V as part of normal operation but high voltage fault detection is not disabled (Error High)
22An V5 at 5V
25An V6 at 5V
28An V7 at 5V
31An V8 at 5V
34An V9 at 5V
37An V10 at 5V
40An V11 at 5V
43An T1 at 5V
46An T2 at 5V
49An T3 at 5V
52An T4 at 5V
11An V1 at GroundThe voltage at the analog input pin has been below the Error Low voltage for longer than one secondSensor may be faulty
14An V2 at GroundVolt channel sensor disconnected
17An V3 at GroundFault Settings incorrect
20An V4 at GroundSensor voltage is going to 0V as part of normal operation but low voltage fault detection is not disabled (Error Low)
23An V5 at Ground
26An V6 at Ground
29An V7 at Ground
32An V8 at Ground
35An V9 at Ground
38An V10 at Ground
41An V11 at Ground
44An T1 at Ground
47An T2 at Ground
50An T3 at Ground
53An T4 at Ground
12An V1 Signal ErrorThe signal is not as expectedSome analog channel functions do checks on the input signal to make sure it is changing as expected (eg RPM and MAP are increasing but TPS did not change  or engine idling but TPS at 100%)
15An V2 Signal ErrorCheck sensor operation and calibration
18An V3 Signal Error
21An V4 Signal Error
24An V5 Signal Error
27An V6 Signal Error
30An V7 Signal Error
33An V8 Signal Error
36An V9 Signal Error
39An V10 Signal Error
42An V11 Signal Error
45An T1 Signal Error
48An T2 Signal Error
51An T3 Signal Error
54An T4 Signal Error
56MAP at 5VThe voltage at the analog input used for MAP Sensor has been above the Error High voltage for longer than one secondThis fault will be accompanied by a general Analog Input at 5V fault code.  Refer to that fault code for more information
57MAP at GroundThe voltage at the analog input used for MAP Sensor has been below the Error Low voltage for longer than one second.This fault will be accompanied by a general Analog Input at Ground fault code.  Refer to that fault code for more information
58MAP Signal ErrorThe MAP signal was not as expectedThis fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
59TPS at 5VThe voltage at the analog input used for TPS Sensor has been above the Error High voltage for longer than one secondThis fault will be accompanied by a general Analog Input at 5V fault code.  Refer to that fault code for more information
60TPS at GroundThe voltage at the analog input used for TPS Sensor has been below the Error Low voltage for longer than one secondThis fault will be accompanied by a general Analog Input at Ground fault code.  Refer to that fault code for more information
61TPS Signal ErrorThe TPS signal was not as expectedThis fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
62ECT at 5VThe voltage at the analog input used for ECT Sensor has been above the Error High voltage for longer than one secondThis fault will be accompanied by a general Analog Input at 5V fault code.  Refer to that fault code for more information
This fault will be generated if the IAT sensor is unplugged and the Error High value is less than 5.00 V
63ECT at GroundThe voltage at the analog input used for ECT Sensor has been below the Error Low voltage for longer than one secondThis fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
64ECT Signal ErrorThe ECT signal was not as expectedThis fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
65IAT at 5VThe voltage at the analog input used for IAT Sensor has been above the Error High voltage for longer than one secondThis fault will be accompanied by a general Analog Input at 5V fault code.  Refer to that fault code for more information
This fault will be generated if the ECT sensor is unplugged and the Error High value is less than 5.00 V
66IAT at GroundThe voltage at the analog input used for IAT Sensor has been below the Error Low voltage for longer than one secondThis fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
67IAT Signal ErrorThe IAT signal was not as expectedThis fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
68Not Used
69Electronic Throttle Control Max Duty Cycle ReachedE-Throttle duty cycle has been within +/-5% of its maximum value continuously for more than 2 secondsIn this situation the E-Throttle system is shut down and cannot be restarted until the ECU power has been cycled. There may be something restricting throttle plate movement or the wiring to the throttle motor has been disconnected meaning the ECU has tried to move the throttle plate but has needed to apply to much power for too long

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