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Series 4 ('86-'88) ECU Error Codes |
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Code # |
Flashes |
Diagnosed Circuit |
Comments |
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DCC1 |
DCC2 |
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1 |
1 Short |
NO LIGHT |
Crank Angle Sensor |
No fail-safe mode for this sensor |
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2 |
2 Short |
NO LIGHT |
Air Flow Meter (AFM) |
Maintains basic signal at preset level |
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3 |
3 Short |
NO LIGHT |
Water Thermo Sensor |
2-Wire sensor on back of thermostat housing |
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4 |
4 Short |
NO LIGHT |
Intake Air Temp Sensor |
Sensor is built into the AFM |
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5 |
1 Long |
NO LIGHT |
Oxygen Sensor (O2 Sensor) |
Sensor located on downpipe / pre-cat |
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6 |
1 Long & 1 Short |
NO LIGHT |
Throttle Sensor (TPS) |
Located underneath intercooler |
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7 |
1 Long & 2 Shorts |
NO LIGHT |
Boost / Pressure Sensor |
Maintains constant command: 96mm Hg (Boost Sensor), 26.3 kPa (Pressure Sensor) |
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9 |
1 Long & 4 Shorts |
NO LIGHT |
Atmospheric Pressure Sensor |
Located next to ECU |
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12 |
2 Shorts |
1 Short |
Trailing Side Coil failure |
Indicates failure within the side ignition system |
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15 |
1 Long |
1 Short |
Intake Air Temp Sensor |
Located on intake air pipe before throttle body |
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