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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
Description Cause Solution
0 No Fault Everything is OK! None
1 RPM Limit RPM limit reached The RPM limit was activated
This fault may occur as part of normal operation if RPM Limit Fault code is enabled
2 MAP Limit MAP limit reached The MAP limit was activated
This fault may occur as part of normal operation if MAP Limit Fault code is enabled
10 An V1 at 5V The voltage at the analog input pin has been above the Error High voltage for longer than one second Sensor may be faulty
13 An V2 at 5V Temp channel sensor disconnected
16 An V3 at 5V Fault Settings incorrect
19 An V4 at 5V Sensor voltage is going to 5V as part of normal operation but high voltage fault detection is not disabled (Error High)
22 An V5 at 5V
25 An V6 at 5V
28 An V7 at 5V
31 An V8 at 5V
34 An V9 at 5V
37 An V10 at 5V
40 An V11 at 5V
43 An T1 at 5V
46 An T2 at 5V
49 An T3 at 5V
52 An T4 at 5V
11 An V1 at Ground The voltage at the analog input pin has been below the Error Low voltage for longer than one second Sensor may be faulty
14 An V2 at Ground Volt channel sensor disconnected
17 An V3 at Ground Fault Settings incorrect
20 An V4 at Ground Sensor voltage is going to 0V as part of normal operation but low voltage fault detection is not disabled (Error Low)
23 An V5 at Ground
26 An V6 at Ground
29 An V7 at Ground
32 An V8 at Ground
35 An V9 at Ground
38 An V10 at Ground
41 An V11 at Ground
44 An T1 at Ground
47 An T2 at Ground
50 An T3 at Ground
53 An T4 at Ground
12 An V1 Signal Error The signal is not as expected Some 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%)
15 An V2 Signal Error Check sensor operation and calibration
18 An V3 Signal Error
21 An V4 Signal Error
24 An V5 Signal Error
27 An V6 Signal Error
30 An V7 Signal Error
33 An V8 Signal Error
36 An V9 Signal Error
39 An V10 Signal Error
42 An V11 Signal Error
45 An T1 Signal Error
48 An T2 Signal Error
51 An T3 Signal Error
54 An T4 Signal Error
56 MAP at 5V The voltage at the analog input used for MAP Sensor has been above the Error High voltage for longer than one second This fault will be accompanied by a general Analog Input at 5V fault code.  Refer to that fault code for more information
57 MAP at Ground The 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
58 MAP Signal Error The MAP signal was not as expected This fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
59 TPS at 5V The voltage at the analog input used for TPS Sensor has been above the Error High voltage for longer than one second This fault will be accompanied by a general Analog Input at 5V fault code.  Refer to that fault code for more information
60 TPS at Ground The voltage at the analog input used for TPS 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
61 TPS Signal Error The TPS signal was not as expected This fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
62 ECT at 5V The voltage at the analog input used for ECT Sensor has been above the Error High voltage for longer than one second This 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
63 ECT at Ground The voltage at the analog input used for ECT Sensor has been below the Error Low voltage for longer than one second This fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
64 ECT Signal Error The ECT signal was not as expected This fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
65 IAT at 5V The voltage at the analog input used for IAT Sensor has been above the Error High voltage for longer than one second This 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
66 IAT at Ground The voltage at the analog input used for IAT Sensor has been below the Error Low voltage for longer than one second This fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
67 IAT Signal Error The IAT signal was not as expected This fault will be accompanied by a general Analog Input Signal Error fault code.  Refer to that fault code for more information
68 Not Used
69 Electronic Throttle Control Max Duty Cycle Reached E-Throttle duty cycle has been within +/-5% of its maximum value continuously for more than 2 seconds In 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