MarkSport
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Registered: 22nd May 09
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put it in slots a and b with ignition off.switch it on and it will start the flahes
How to read Motronic or GM-Multec Flash Codes:
The Motronic or GM-Multec fuel systems use a 2 digit flash code. The engine does not have to be running when reading the codes, although it doesn't hurt if it is.
Once the wire link is in place and the electric's are on, the ECU warning lamp will begin to flash out the codes (wait for the initial boot up check that lights up all the warning lamps). Each fault code is repeated 3 times and then it moves onto the next one (if any). Once at the end of the logged fault code list, it will go to the beginning again, giving you plenty of time to note down the code (on each fault code shown, there will be a pause before it shows the next one). It will carry on like this forever until you remove the key from the ignition or the battery runs flat. To clear the fault codes, simply remove the battery leads for a few minutes and then reconnect.
For example, lets say there was a ECU warning lamp noted and the owner wanted to read what fault code was logged. The owner has already put the wire link in place and switched on the ignition. A flash is indicated by an astrix (*) and a pause is shown as a dash (-).
*-** (1 flash, 1 pause and another 2 flashes = code 12)
*-** (12)
*-** (12)
**-*** (23)
**-*** (23)
**-*** (23)
*-** (12)
*-** (12)
*-** (12)
**-*** (23)
**-*** (23)
**-*** (23)
*-** (12)
*-** (12)
*-** (12)
Owner then takes the key out of the ignition.
Lets go through what has happened. After switching on the ignition, the dash board lights up showing the self check, after that all the lights go out and the ECU warning light begins to flash the error code. The first code is 12 (one flash, a pause and then two flashes). This is repeated 3 times.
Code 12 at this moment means initiation of diagnosis. After that came code 23, which means 'Knock control module', i.e. there is most likely a faulty unit or a bad connection at its plug. After code 23 has been repeated 3 times it flashes a separator code, which is code 12.
It flashes this 3 times before going to the next fault code. The next code is code 23 again which means its finished showing the logged fault codes and has started back at the beginning. The owner can switch off the ignition. A healthy car should display a stream of code 12's. To find out what fuel system you have, read the "Fault Code Chart" below
How to read Simtec 56.0/56.1 Flash Codes:
The Simtec 56.0/56.1 fuel systems use a 2 digit flash code. The engine ideally needs to be running when reading the fault codes, otherwise it may show incorrect fault codes.
Once the wire link is in place and the engine is running, the ECU warning lamp will begin to flash out the codes (wait for the initial boot up check that lights up all the warning lamps). Each fault code is repeated 3 times and then it moves onto the next one (if any). Once at the end of the logged fault code list, it will go to the beginning again, giving you plenty of time to note down the code (on each fault code shown, there will be a pause before it shows the next one). It will carry on like this for ever until you remove the key from the ignition or the battery runs flat. To clear the codes simply turn on and off the ignition 30 times with a 5 second 'on' gap in-between (time allowed for self check to finish).
For example, lets say there was a ECU warning lamp noted and the owner wanted to read what fault code was logged. The owner has already put the wire link in place and switched on the ignition. A flash is indicated by an astrix (*) and a pause is shown as a dash (-).
*-** (1 flash, 1 pause and another 2 flashes = code 12)
*-** (12)
*-** (12)
**-*** (23)
**-*** (23)
**-*** (23)
*-** (12)
*-** (12)
*-** (12)
**-*** (23)
**-*** (23)
**-*** (23)
*-** (12)
*-** (12)
*-** (12)
Owner then takes the key out of the ignition.
Lets go through what has happened. After switching on the ignition, the dash board lights up showing the self check, after that all the lights go out and the ECU warning light begins to flash the error code. The first code is 12 (one flash, a pause and then two flashes). This is repeated 3 times.
Code 12 at this moment means initiation of diagnosis. After that came code 23, which means 'Knock control module', i.e. there is most likely a faulty unit or a bad connection at its plug. After code 23 has been repeated 3 times it flashes a separator code, which is code 12.
It flashes this 3 times before going to the next fault code. The next code is code 23 again which means its finished showing the logged fault codes and has started back at the beginning. The owner can switch off the ignition. A healthy car should display a stream of code 12's (note: some ECU systems will also show code 31 or 19 because it doesn't see the engine turning over, this is not a fault because you haven't started the car). Simply start the car and read the fault codes again. To find out what fuel system you have, read the "Fault Code Chart" below.
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 sensor 1 No change in voltage
17 Knock sensor 2 No change in voltage
18 Knock control unit No signal, Engine Control Unit (ECU) fault
19 RPM signal (crankshaft sensor) Incorrect signal
21 Throttle position sensor High voltage
22 Throttle position sensor Low voltage
23 Knock sensor module n/a
24 Vehicle speed sensor (VSS) No signal
25 Injector valve 1 High voltage
26 Injector valve 2 High voltage
27 Injector valve 3 High voltage
28 Injector valve 4 High voltage
28 Fuel pump relay Low voltage
29 Injector valve 5 High voltage
31 Engine RPM signal (crankshaft sensor) No signal
32 Injector valve 6 High voltage
32 Fuel pump relay High voltage
33 Inlet manifold pressure sensor Voltage too high
34 Exhaust Gas Re-circulation (EGR) valve Voltage too high
34 Manifold Absolute Pressure (MAP) sensor Low voltage
35 Idle Speed Control Valve (ISCV) Poor or no idle speed control
36 Incorrect RON/Octane setting Damaged RON plug or bad connection.
37 Engine self-diagnosis (fault code light) Low voltage
38 Oxygen sensor Voltage low (1990 model year on)
39 Oxygen sensor Voltage high (1990 model year on)
41 Vehicle speed sensor (VSS) Low voltage
41 1 gear ident switch (C20LET systems) Low voltage
41 EST Line coil cylinder 2&3 (M2.8/XEV systems) High voltage
42 Vehicle speed sensor (VSS) High voltage
42 1 gear ident switch (C20LET systems) High voltage
42 EST Line coil cylinder 2&3 (M2.8 / XEV systems) High voltage
43 Linear EGR system (XEV systems) Faulty
44 Oxygen sensor Air/fuel mixture too lean (weak)
45 Oxygen sensor Air/fuel mixture too rich
46 Air pump relay High voltage
47 Air pump relay Low voltage
47 Linear EGR Position (XEV systems) Faulty
48 Battery voltage Low voltage
49 Battery voltage High voltage
51 ECU Programmable memory PROM error, hardware failure
52 Engine check light; final stage (fault code light) High voltage
53 Fuel pump relay Low voltage
54 Fuel pump relay High voltage
55 Engine Control Unit (ECU) fault Renew Engine Control Unit (ECU)
56 Idle Speed Control Valve (ISCV) Short to earth
57 Idle Speed Control Valve (ISCV) Interruption
59 Inlet manifold valve 1 Low voltage
61 Fuel Tank Vent Valve (FTVV) Low voltage
62 Fuel Tank Vent Valve (FTVV) High voltage
63 Inlet manifold valve 1 High voltage
63 EST Line coil cylinder 2&3 (M2.8 / XEV systems) Low voltage
64 EST Line coil cylinder 1&4 (M2.8 / XEV systems) Low voltage
65 Carbon Monoxide (CO) potentiometer Low voltage
66 Carbon Monoxide (CO) potentiometer High voltage
67 Throttle valve switch - idle position switch Low voltage - switch not opening
68 Throttle Switch (TS) - idle contact Idle switch not opening
69 Air Temperature Sensor (ATS) Low voltage
71 Air Temperature Sensor (ATS) High voltage
72 Throttle Switch (TS) - full load contact High voltage - Full load switch not running
73 Air Flow Sensor (AFS) Low voltage
74 Air Flow Sensor (AFS) High voltage
75 Transmission switch - torque control Low voltage
76 Automatic Transmission (AT) torque control Engaged long, ignition retard long
79 Traction control unit Incorrect ignition/injector cut-off
81 Injector valve 1 Low voltage
82 Injector valve 2 Low voltage
83 Injector valve 3 Low voltage
84 Injector valve 4 Low voltage
85 Injector valve 5 Low voltage
86 Injector valve 6 Low voltage
87 Air Conditioning (AC) cut off relay Low voltage
88 Air Conditioning (AC) cut off relay High voltage
89 Oxygen sensor heater Low voltage
91 Oxygen sensor heater High voltage
92 Camshaft sensor failure (XEV systems) Faulty
93 Hall Effect Switch (HES) Low voltage
94 Hall Effect Switch (HES) High voltage
95 Hot start valve Low voltage
96 Hot start valve High voltage
97 Traction control unit - ignition/injection cut off Incorrect signal - high voltage
98 Oxygen sensor Open circuit, wiring break
99 Code unknown n/a
113 Turbo boost control Boost presure high, out of range
114 Idle boost valve Above upper limit
115 Full boost pressure Below lower limit
116 Boost pressure Above upper limit
117 Wastegate valve Low voltage
118 Wastegate valve High voltage
121 Oxygen sensor 2 Lean exhaust, weak mixture
122 Oxygen sensor 2 Rich mixture/exhaust
123 Inlet manifold valve 1 Blocked
124 Inlet manifold valve 2 Blocked
132 Exhaust Gas Re-circulation (EGR) valve Incorrect signal
133 Exhaust Gas Re-circulation (EGR) valve 2 High voltage
134 Exhaust Gas Re-circulation (EGR) valve 2 Low voltage
135 'Check engine' lamp (fault code lamp) Low voltage
136 Engine Control Unit (ECU) n/a
137 Engine Control Unit (ECU) box High temperature
141 Secondary air pump Not enough air
142 Secondary air pump Air without pump
143 Immobiliser function in ECU No or incorrect signal
144 No immobiliser signal recived Faulty unit or break in wiring
145 Incorrect immobiliser signal received Faulty unit or break in wiring
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
Siemens Simtec 56.0/56.1 Code Chart:
Code: Item: Fault:
12 Initiation of diagnosis. n/a
13 Oxygen sensor Open circuit
14 Coolant temperature sensor Voltage low
15 Coolant temperature sensor Voltage high
16 Knock sensor signal circuit No change in voltage
19 Incorrect Revs per Minute (RPM) signal (crankshaft sensor) Incorrect signal, check sensor
21 Throttle position sensor (TPS) Voltage high
22 Throttle position sensor (TPS) Voltage low
23 Knock control module signal Out of range
24 Vehicle speed signal (VSS) No signal
25 Injector valve 1 Voltage high
26 Injector valve 2 Voltage high
27 Injector valve 3 Voltage high
28 Injector valve 4 Voltage high
37 Check light (fault code lamp) Voltage low
38 Oxygen sensor circuit Voltage high
39 Oxygen sensor circuit Voltage low
44 Oxygen sensor Lean exhaust (weak mixture)
45 Oxygen sensor Rich exhaust (rich mixture)
48 Battery Voltage low
49 Battery Voltage high
52 Check light (fault code lamp) Voltage high
53 Fuel pump relay Voltage low
54 Fuel pump relay Voltage high
55 Engine Control Unit (ECU) faulty Check chassis earth and ECU connector.
56 Idle air control Voltage high
57 Idle air control Voltage low
61 Fuel tank vent valve Voltage low
62 Fuel tank vent valve Voltage high
69 Intake air temperature sensor Voltage low
71 Intake air temperature sensor Voltage high
73 Mass air flow temperature Voltage low
74 Mass air flow temperature Voltage high
75 Torque control (automatic) Voltage low
76 Torque control (automatic) Continuous signal, ignition retard long
81 Injector valve 1 Voltage low. Injector short circuit to ground.
82 Injector valve 2 Voltage low. Injector short circuit to ground.
83 Injector valve 3 Voltage low. Injector short circuit to ground.
84 Injector valve 4 Voltage low. Injector short circuit to ground.
87 Air Conditioning (A/C) cut-off relay Voltage low
88 Air Conditioning (A/C) cut-off relay Voltage high
91 Oxygen sensor heater Voltage high
92 Camshaft sensor Incorrect signal
98 Oxygen sensor heater Voltage low, open circuit
hope this helps 
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