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Author copy of fault codes (for paperclip test)
gsirick
Member

Registered: 18th Feb 07
Location: mid-wales
User status: Offline
5th May 07 at 16:16   View User's Profile U2U Member Reply With Quote

heres a list of the fault codes for the corsa gsiGM-Multec ECU Fault Codes

This fault code chart shows the GM-Multec fault codes for the following systems:- SPi, MPi, CFi, M and S.


GM-Multec Code Chart:

Code: Item: Fault:

12 Initiation of diagnosis. n/a
13 Oxygen sensor No change in voltage/open circuit.
14 Coolant Temperature Sensor (CTS) Low voltage
15 Coolant Temperature Sensor (CTS) High voltage
16 Knock signal circuit n/a
18 Knock control processor n/a
19 Crank Angle Sensor (CAS) Incorrect RPM signal
21 Throttle Potentiometer Sensor (TPS) High voltage
22 Throttle Potentiometer Sensor (TPS) Low voltage
24 Vehicle Speed Sensor (VSS) No speed signal or low voltage
25 Injector valve Low voltage
28 Fuel pump relay contacts Contact problem
29 Fuel pump relay Low voltage
32 Fuel pump relay High voltage
33 Manifold Absolute Pressure (MAP) sensor High voltage
34 Manifold Absolute Pressure (MAP) sensor Low voltage
35 Idle stepper motor Poor or no idle speed control
41 Amplifier control signal, cylinders 2 and 3 (Direct Ignition System (DIS)) High voltage
42 Amplifier control signal, cylinders 1 and 4 (Direct Ignition System (DIS)) High voltage
43 Primary ignition (distributor systems) High voltage
44 Oxygen sensor Air/Fuel mixture too lean (weak)
45 Oxygen sensor Air/Fuel mixture too rich
46 Amplifier (Direct Ignition System (DIS)) control signal (A+B) High voltage
47 Linear exhaust gas re-circulation (EGR) position n/a
49 Battery supply to Engine Control Unit (ECU) High voltage (greater than 17 volts)
51 Engine Control Unit (ECU) Defective ECU (disconnect and reconnect (ECU), then recheck for fault codes). Memory failure
52 Secondary air pump relay Low voltage
53 Secondary air pump relay High voltage
54 Idle Carbon Monoxide (CO) potentiometer n/a
55 Engine Control Unit (ECU) fault Renew Engine Control Unit (ECU)
56 Air control soleniod Low voltage
57 Air control soleniod High voltage
61 Fuel tank vent valve (FTVV) Low voltage
62 Fuel tank vent valve (FTVV) High voltage
63 Amplifier control signal, cylinders 2 and 3 (Direct Ignition System (DIS)) Low voltage
64 Amplifier control signal, cylinders 1 and 4 (Direct Ignition System (DIS)) Low voltage
65 Primary ignition (distributor systems) Low voltage
66 Throttle position sensor (TPS) Hose broken
67 Air Flow Sensor (AFS), hot wire meter (air mass meter) Signal is outside normal operation parameters (out of range)
68 Air Flow Sensor (AFS), hot wire meter (air mass meter) Faulty air mass meter signal, incorrect frequency
69 Air Temperature Sensor (ATS) (MPi only) Low voltage
71 Air Temperature Sensor (ATS) (MPi only) High voltage
72 Amplifier (Direct Ignition System (DIS)) control signal (A+B) Lead interruption, open circuit
75 Torque control (Automatic Transmission (AT) only) Low voltage
76 Torque control (Automatic Transmission (AT) only) Continuous
81 Injector valve High voltage
83 Immobiliser No or wrong code
84 Immobiliser No signal
85 Immobiliser Wrong signal
87 Air conditioning cut-off relay Low voltage
88 Air conditioning cut-off relay High voltage
92 Camshaft sensor Faulty hall effect sensor or circuit
93 Quad drive module (in ECU) n/a
s the fault code no.

[Edited on 05-05-2007 by gsirick]
Ben G
Member

Registered: 12th Jan 07
Location: Essex
User status: Offline
5th May 07 at 16:36   View User's Profile U2U Member Reply With Quote

wouldn't mind knowing how to do this paperclip test
gsirick
Member

Registered: 18th Feb 07
Location: mid-wales
User status: Offline
5th May 07 at 16:42   View User's Profile U2U Member Reply With Quote

basically u find your diagnostic plug (on my gsi its in the fuse box in drivers footwell) you then take a paper clip and short out terminals A & B then turn ur ignition on (start the engine if u want) but u dont have to. then watch the eml it will start to flash, the codes will appear (if any) as: the first flash that apears until a pause ie 1 flash then a pause will be 1, then after the pause it will flash again until another pause ie 2 flashes so the fault code is 12.
hope u get it, lol
Ben G
Member

Registered: 12th Jan 07
Location: Essex
User status: Offline
5th May 07 at 16:46   View User's Profile U2U Member Reply With Quote

thanks for that mate i understand abou tthe flashes but don't get how you locate the diagnostic plug or short out the terminals? do you just shove each of the wire into A and B? so it's just a loop?
gsirick
Member

Registered: 18th Feb 07
Location: mid-wales
User status: Offline
5th May 07 at 16:48   View User's Profile U2U Member Reply With Quote

yeah bud
u can save a fortune doin this, i recently paid £30 for a diagnostic scan

[Edited on 05-05-2007 by gsirick]

 
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