FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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CDI3 [Engine 648] 1 of 3


CDI3 Diessel Engine Control System [1 of 3]

DTC Brief Description

100 [1] Check charge air system.: The air mass is too large.�

100 [2] Check charge air system.: The air mass is too small.�

180 [1] Check component B50 (Fuel temperature sensor).: The signal voltage is too high.�

180 [2] Check component B50 (Fuel temperature sensor).: The signal voltage is too low.�

190 [1] Check component B4/6 (Rail pressure sensor).: The signal voltage is too high.�

190 [2] Check component B4/6 (Rail pressure sensor).: The signal voltage is too low.�

201 [1] Check component Y76y1 (Fuel injector cylinder 1).: Short circuit to positive�

201 [2] Check component Y76y1 (Fuel injector cylinder 1).: Short circuit to ground�

201 [4] Check component Y76y1 (Fuel injector cylinder 1).: Short circuit to each other�

201 [8] Check component Y76y1 (Fuel injector cylinder 1).: General error�

202 [1] Check component Y76y2 (Fuel injector cylinder 2).: Short circuit to positive�

202 [2] Check component Y76y2 (Fuel injector cylinder 2).: Short circuit to ground�

202 [4] Check component Y76y2 (Fuel injector cylinder 2).: Short circuit to each other�

202 [8] Check component Y76y2 (Fuel injector cylinder 2).: General error�

203 [1] Check component Y76y3 (Fuel injector cylinder 3).: Short circuit to positive�

203 [2] Check component Y76y3 (Fuel injector cylinder 3).: Short circuit to ground�

203 [4] Check component Y76y3 (Fuel injector cylinder 3).: Short circuit to each other�

203 [8] Check component Y76y3 (Fuel injector cylinder 3).: General error�

204 [1] Check component Y76y4 (Fuel injector cylinder 4).: Short circuit to positive�

204 [2] Check component Y76y4 (Fuel injector cylinder 4).: Short circuit to ground�

204 [4] Check component Y76y4 (Fuel injector cylinder 4).: Short circuit to each other�

204 [8] Check component Y76y4 (Fuel injector cylinder 4).: General error�

205 [1] Check component Y76y5 (Fuel injector cylinder 5).: Short circuit to positive�

205 [2] Check component Y76y5 (Fuel injector cylinder 5).: Short circuit to ground�

205 [4] Check component Y76y5 (Fuel injector cylinder 5).: Short circuit to each other�

205 [8] Check component Y76y5 (Fuel injector cylinder 5).: General error�

206 [1] Check component Y76y6 (Fuel injector cylinder 6).: Short circuit to positive�

206 [2] Check component Y76y6 (Fuel injector cylinder 6).: Short circuit to ground�

206 [4] Check component Y76y6 (Fuel injector cylinder 6).: Short circuit to each other�

206 [8] Check component Y76y6 (Fuel injector cylinder 6).: General error�

1105 [1] N3/9 (CDI control unit) Atmospheric pressure sensor: The signal voltage is too high.�

1105 [2] N3/9 (CDI control unit) Atmospheric pressure sensor: The signal voltage is too low.�

1105 [8] N3/9 (CDI control unit) Atmospheric pressure sensor: The atmospheric pressure between component N3/9 (CDI control unit) and component B5/1 (Charge pressure sensor) is implausible.�

1192 [1] Check component B40 (Oil sensor (oil level, temperature and quality)).: Signal faulty�

1192 [2] Check component B40 (Oil sensor (oil level, temperature and quality)).: Error in pulse monitoring of first cycle�

1192 [4] Check component B40 (Oil sensor (oil level, temperature and quality)).: Error in pulse monitoring of synchronization pause�

1192 [8] Check component B40 (Oil sensor (oil level, temperature and quality)).: Error in pulse monitoring of on/off ratio�

1222 [1] Check component Sensor in component B37 (Accelerator pedal sensor).: The signal voltage is too high.�

1222 [2] Check component Sensor in component B37 (Accelerator pedal sensor).: The signal voltage is too low.�

1222 [8] Check component Sensor in component B37 (Accelerator pedal sensor).: Plausibility Sensor 1/2�

1234 [1] Check component Sensor in component B37 (Accelerator pedal sensor).: The signal voltage is too high.�

1234 [2] Check component Sensor in component B37 (Accelerator pedal sensor).: The signal voltage is too low.�

1234 [8] Check component Sensor in component B37 (Accelerator pedal sensor).: Plausibility Sensor 2/1�

1403 [1] Check system 'Exhaust gas recirculation'.: The air mass is too small.�

1403 [2] Check system 'Exhaust gas recirculation'.: The air mass is too large.�

1436 [1] Check component B19/8 (Downstream TWC [KAT] temperature sensor).: The signal voltage is too high.�

1436 [2] Check component B19/8 (Downstream TWC [KAT] temperature sensor).: The signal voltage is too low.�

1437 [1] Check component B19/7 (Upstream TWC [KAT] temperature sensor).: The signal voltage is too high.�

1437 [2] Check component B19/7 (Upstream TWC [KAT] temperature sensor).: The signal voltage is too low.�

1470 [1] Check system 'Charge pressure control'.: Too low boost pressure�

1470 [2] Check system 'Charge pressure control'.: Boost pressure too high�

1480 [1] Check component A1e16 (Preglow indicator lamp).: CAN FAULTY�

1482 [1] Check component N14/2 (Glow output stage).: Short circuit�

1482 [2] Check component N14/2 (Glow output stage).: FAULTY�

1482 [4] Check component N14/2 (Glow output stage).: Communication fault�

1482 [8] Check component N14/2 (Glow output stage).: Transmission fault�

1520 [1] Check component S40/4 (CC switch with variable speed limiter).: CAN message from control module N73 (EIS [EZS] control unit): IMPLAUSIBLE�

1520 [2] Check component S40/4 (CC switch with variable speed limiter).: Two functions were executed simultaneously.�

1610 [1] Check component N10/1 (Front SAM control unit with fuse and relay module).: Relay N10/1kR (Circuit 87 relay, engine) switches off too late.�

1610 [2] Check component N10/1 (Front SAM control unit with fuse and relay module).: Relay N10/1kR (Circuit 87 relay, engine) switches off too soon.�

1610 [4] Check component N10/1 (Front SAM control unit with fuse and relay module).: Relay 'N10/1kR (Circuit 87 relay, engine)' does not switch.�

1611 [1] Check supply voltage (1) of sensors.: Readout too large�

1611 [2] Check supply voltage (1) of sensors.: Readout too small�

1615 [1] Test voltage supply.: Readout too large�

1615 [2] Test voltage supply.: Readout too small�

1617 [1] Control unit EEPROM error: An error occurred during the last write or read operation.�

1617 [2] Control unit EEPROM error: An error occurred during the last read operation.�

1617 [4] Control unit EEPROM error: An error occurred during the last write operation.�

1617 [8] Control unit EEPROM error: The preset values were used.�

1630 [1] Check system 'Immobilizer'.: Internal fault N3/9 (CDI control unit)�

1630 [2] Check system 'Immobilizer'.: Communication fault between component N3/9 (CDI control unit) and N73 (EIS [EZS] control unit)�

1630 [4] Check system 'Immobilizer'.: Expended authentication value�

1630 [8] Check system 'Immobilizer'.: Key used is inhibited.�

1636 [1] Check component M4/7 (Engine and AC electric suction fan with integrated control).: Short circuit to positive�

1636 [2] Check component M4/7 (Engine and AC electric suction fan with integrated control).: Short circuit to ground�

1636 [4] Check component M4/7 (Engine and AC electric suction fan with integrated control).: Signal wire OPEN CIRCUIT�

1636 [8] Check component M4/7 (Engine and AC electric suction fan with integrated control).: Thermal overload of control module N3/9 (CDI control unit)�

1664 [1] Check component N33/2 (Heater booster control module).: Short circuit to positive�

1664 [2] Check component N33/2 (Heater booster control module).: Short circuit to ground�

1664 [4] Check component N33/2 (Heater booster control module).: Signal line is interrupted.�

1664 [8] Check component N33/2 (Heater booster control module).: Excess temperature in engine control module�

2008 [1] B4/6 Rail pressure sensor offset test: Value is above limit.�

2008 [2] B4/6 Rail pressure sensor offset test: Value is below limit.�

2009 [1] Check component B76 (Fuel filter water level sensor).: FAULTY�

2009 [2] Check component B76 (Fuel filter water level sensor).: Water in the fuel filter.�

2009 [4] Check component B76 (Fuel filter water level sensor).: Water in the fuel filter.�

2011 [1] Check component B2/5 (Hot film mass air flow sensor). Sensitivity drift: Air mass ratio for calculated quantity (top)�

2011 [2] Check component B2/5 (Hot film mass air flow sensor). Sensitivity drift: Air mass ratio for calculated quantity (bottom)�

2012 [8] Check component B11/4 (Coolant temperature sensor).: The dynamic test was not plausible.�

2014 [1] Check component B40 (Oil sensor (oil level, temperature and quality)).: Value is above limit.�

2014 [2] Check component B40 (Oil sensor (oil level, temperature and quality)).: Value is below limit.�

2014 [4] Check component B40 (Oil sensor (oil level, temperature and quality)).: Oil temperature is implausible.�

2014 [8] Check component B40 (Oil sensor (oil level, temperature and quality)).: Plausibility�

2015 [1] Rail pressure monitoring via volume control valve: The rail pressure is too low.�

2016 [1] Rail pressure monitoring via volume control valve: The rail pressure is too high.�

2016 [2] Rail pressure monitoring via volume control valve: The pressure reduction during deceleration is implausible.�

2016 [4] Rail pressure monitoring via volume control valve: Standard deviation in deceleration mode�

2016 [8] Rail pressure monitoring via volume control valve: Standard deviation in idle�

2017 [1] Rail pressure monitoring via volume control valve: The rail pressure is too low.�

2017 [2] Rail pressure monitoring via volume control valve: The rail pressure is too low.�

2018 [1] Rail pressure monitoring via volume control valve: The rail pressure is too high.�

2019 [1] Rail pressure monitoring via pressure control valve: The rail pressure is too low.�

2019 [2] Rail pressure monitoring via pressure control valve: The rail pressure is too low for the engine speed.�

2020 [1] Rail pressure monitoring via pressure control valve: The rail pressure is too high for the closed pressure regulator valve.�

2020 [4] Rail pressure monitoring via pressure control valve: The rail pressure is too high.�

2021 [1] Rail pressure monitoring via pressure control valve: The rail pressure is too low.�

2023 [1] Rail pressure monitoring via pressure control valve: The rail pressure is too high.�

2024 [1] Check component B2/5b1 (Intake air temperature sensor).: The signal voltage is too high.�

2024 [2] Check component B2/5b1 (Intake air temperature sensor).: The signal voltage is too low.�

2026 [1] Check component G3/2 (O2 sensor upstream of KAT).: Short circuit to positive�

2026 [2] Check component G3/2 (O2 sensor upstream of KAT).: Short circuit to ground�

2026 [4] Check component G3/2 (O2 sensor upstream of KAT).: Signal line is interrupted.�

2026 [8] Check component G3/2 (O2 sensor upstream of KAT).: Test voltage supply.�

2028 [1] Pump current (G3/2 (O2 sensor upstream of KAT)) of oxygen sensor: Short circuit to positive�

2028 [2] Pump current (G3/2 (O2 sensor upstream of KAT)) of oxygen sensor: Short circuit to ground�

2028 [4] Pump current (G3/2 (O2 sensor upstream of KAT)) of oxygen sensor: Battery severely discharged/ faulty�

2028 [8] Pump current (G3/2 (O2 sensor upstream of KAT)) of oxygen sensor: Battery severely discharged/ faulty�

2030 [1] Check component G3/2 (O2 sensor upstream of KAT).: Short circuit to positive�

2030 [2] Check component G3/2 (O2 sensor upstream of KAT).: Short circuit to ground�

2030 [4] Check component G3/2 (O2 sensor upstream of KAT).: Battery severely discharged/ faulty�

2030 [8] Check component G3/2 (O2 sensor upstream of KAT).: The battery is defective.�

2032 [1] Check component G3/2 (O2 sensor upstream of KAT).: Voltage is too high.�

2032 [2] Check component G3/2 (O2 sensor upstream of KAT).: Voltage is too low.�

2032 [4] Check component G3/2 (O2 sensor upstream of KAT).: Voltage is too high.�

2034 [1] Check component G3/2 (O2 sensor upstream of KAT).: The calibration value is too high.�

2034 [2] Check component G3/2 (O2 sensor upstream of KAT).: The calibration value is too low.�

2035 [1] Check component G3/1 (O2 sensor downstream TWC).: The calibration value is too high.�

2035 [2] Check component G3/1 (O2 sensor downstream TWC).: The calibration value is too low.�

2036 [1] Check component G3/2 (O2 sensor upstream of KAT).: The internal resistance is too high.�

2036 [2] Check component G3/2 (O2 sensor upstream of KAT).: The internal resistance is too low.�

2038 [1] Check component G3/2 (O2 sensor upstream of KAT).: The internal resistance is too high.�

2038 [2] Check component G3/2 (O2 sensor upstream of KAT).: The internal resistance is too low.�

2040 [1] Check component B40 (Oil sensor (oil level, temperature and quality)). Oil level: Value is above limit.�

2040 [4] Check component B40 (Oil sensor (oil level, temperature and quality)). Oil level: Invalid value�

2040 [8] Check component B40 (Oil sensor (oil level, temperature and quality)). Oil level: Plausibility�

2041 [1] Check component B40 (Oil sensor (oil level, temperature and quality)). Oil quality: Value is above limit.�

2041 [4] Check component B40 (Oil sensor (oil level, temperature and quality)). Oil quality: Invalid value�

2041 [8] Check component B40 (Oil sensor (oil level, temperature and quality)). Oil quality: Implausible value�

2042 [1] Check component B40 (Oil sensor (oil level, temperature and quality)). Water in the oil (milky clouding with smears): The water content is too high.�

2043 [1] Check component B6/1 (Camshaft Hall sensor).: No signal�

2043 [2] Check component B6/1 (Camshaft Hall sensor).: Signal faulty�

2044 [1] Check component B6/1 (Camshaft Hall sensor).: No signal�

2044 [2] Check component B6/1 (Camshaft Hall sensor).: Temporarily invalid signal�

2045 [1] Check component L5 (Crankshaft position sensor).: No signal�

2045 [2] Check component L5 (Crankshaft position sensor).: Signal faulty�

2046 [1] Test components B6/1 (Camshaft Hall sensor) and L5 (Crankshaft position sensor).: There was a temporary loss of signal transmission.�

2046 [2] Test components B6/1 (Camshaft Hall sensor) and L5 (Crankshaft position sensor).: Temporarily invalid signal�

2047 [1] Rail pressure monitoring via volume control valve: The rail pressure is too low.�

2059 [0] Check component G3/2 (O2 sensor upstream of KAT).:�

2059 [4] Check component G3/2 (O2 sensor upstream of KAT).: The signal voltage is too high.�

2062 [2] Check component B40 (Oil sensor (oil level, temperature and quality)).: Error in pulse monitoring of first cycle�

2062 [4] Check component B40 (Oil sensor (oil level, temperature and quality)).: Error in pulse monitoring of synchronization pause�

2062 [8] Check component B40 (Oil sensor (oil level, temperature and quality)).: Error in pulse monitoring of on/off ratio�

2063 [1] Check component B2/5b1 (Intake air temperature sensor).: Value is above limit.�

2063 [2] Check component B2/5b1 (Intake air temperature sensor).: Value is below limit.�

2065 [1] Check component B2/5 (Hot film mass air flow sensor).: The voltage supply is too high�

2065 [2] Check component B2/5 (Hot film mass air flow sensor).: The voltage supply is too low.�

2066 [1] Check component B2/5 (Hot film mass air flow sensor).: Value is above limit.�

2066 [2] Check component B2/5 (Hot film mass air flow sensor).: Value is below limit.�

2066 [4] Check component B2/5 (Hot film mass air flow sensor).: Implausible value�

2067 [1] Check component B2/5 (Hot film mass air flow sensor).: Value is above limit.�

2067 [2] Check component B2/5 (Hot film mass air flow sensor).: Value is below limit.�

2067 [4] Check component B2/5 (Hot film mass air flow sensor).: Mass air flow sensor (raw value) SHORT CIRCUIT / IDLE SPEED�

2068 [1] Check component B2/5 (Hot film mass air flow sensor).: On/off ratio of reference signal is too large.�

2068 [2] Check component B2/5 (Hot film mass air flow sensor).: On/off ratio of reference signal is too small.�

2068 [4] Check component B2/5 (Hot film mass air flow sensor).: SHORT CIRCUIT / IDLE SPEED�

2073 [2] Monitoring: Check component G3/2 (O2 sensor upstream of KAT).: Value is below limit.�

2073 [8] Monitoring: Check component G3/2 (O2 sensor upstream of KAT).: Plausibility�

2078 [1] Check component B28/8 (Pressure differential sensor (DPF)).: Value is above limit.�

2078 [2] Check component B28/8 (Pressure differential sensor (DPF)).: Value is below limit.�

2078 [8] Check component B28/8 (Pressure differential sensor (DPF)).: Plausibility Tml.15 ON�

2081 [1] Check component B28/8 (Pressure differential sensor (DPF)).: Pressure : Value is above limit.�

2081 [2] Check component B28/8 (Pressure differential sensor (DPF)).: Pressure : Value is below limit.�

2081 [8] Check component B28/8 (Pressure differential sensor (DPF)).: Plausibility�

2084 [1] Diesel particulate filter Flow monitoring of air mass: The air mass is too large.�

2084 [2] Diesel particulate filter Flow monitoring of air mass: The air mass is too small.�

2086 [1] Check actual values of components B19/7 (Upstream TWC [KAT] temperature sensor) and B19/9 (Temperature sensor upstream of diesel particulate filter) for plausibility.: The temperature upstream of the particulate filter is too high.�

2086 [2] Check actual values of components B19/7 (Upstream TWC [KAT] temperature sensor) and B19/9 (Temperature sensor upstream of diesel particulate filter) for plausibility.: The temperature upstream of the particulate filter is too low.�

2086 [8] Check actual values of components B19/7 (Upstream TWC [KAT] temperature sensor) and B19/9 (Temperature sensor upstream of diesel particulate filter) for plausibility.: Plausibility�

2087 [1] Check component Air filter.: Air cleaner dirty�

2087 [8] Check component Air filter.: The air cleaner is clogged.�

2088 [1] Check component B2/5b1 (Intake air temperature sensor).: On/off ratio: Value is above limit.�

2088 [2] Check component B2/5b1 (Intake air temperature sensor).: On/off ratio: Value is below limit.�

2089 [1] Check component B60 (Exhaust back pressure sensor).: Voltage is too high.�

2089 [2] Check component B60 (Exhaust back pressure sensor).: Voltage is too low.�

2089 [8] Check component B60 (Exhaust back pressure sensor).: Plausibility�

2093 [1] Check component B2/5b1 (Intake air temperature sensor).: Value is above limit.�

2093 [2] Check component B2/5b1 (Intake air temperature sensor).: Value is below limit.�

2094 [1] Check component B2/5b1 (Intake air temperature sensor).: Value is above limit.�

2094 [2] Check component B2/5b1 (Intake air temperature sensor).: Value is below limit.�

2100 [1] Check component M3 (Fuel pump).: Short circuit to positive�

2100 [2] Check component M3 (Fuel pump).: Short circuit to ground�

2100 [4] Check component M3 (Fuel pump).: Signal line is interrupted.�

2100 [8] Check component M3 (Fuel pump).: Thermal overload of control module N3/9 (CDI control unit)�

2112 [4] Check component Y100/1 (Right charge pressure positioner).: Signal line is interrupted.�

2112 [8] Check component Y100/1 (Right charge pressure positioner).: Thermal overload of control module N3/9 (CDI control unit)�

2121 [4] Check component Y27/9 (Left EGR positioner).: Signal line is interrupted.�

2121 [8] Check component Y27/9 (Left EGR positioner).: Thermal overload of control module N3/9 (CDI control unit)�

2122 [1] Engine shutoff paths: Control unit N3/9 (CDI control unit) detects a defective control loop.�

2122 [2] Engine shutoff paths: Control unit N3/9 (CDI control unit) detects a defective control loop.�

2122 [4] Engine shutoff paths: Voltage monitoring / Overvoltage�

2122 [8] Engine shutoff paths: Voltage monitoring / Undervoltage