Diagnostic Trouble Codes (DTC)

BMW Siemens MS41, MS42 and MS43 Fault codes.

BMW M52TU and M54 petrol engine fault codes. (E34, E36, E38, E46.)

1 Ignition coil Cyl 2

2 Ignition coil Cyl 4

3 Ignition coil Cyl 6

5 Fuel injector Cyl 2

6 Fuel injector Cyl 1

8 Air Flow Meter (HFM)

10 Coolant Temperature Sensor

11 Tank Pressure Sensor (EVAP System) or Radiator Outlet Temp (MS43)

12 TPS or Plausibility – Maximum Coolant Temp (MS43)

13 Plausibility- Radiator Outlet Temp

14 Intake Air Temperature Sensor

15 Plausibility – Cut Out Time

16 AirCon Compressor – PWM Signal or Plausibility Intake Air Temp (MS43)

17 Plausibility – Engine Coolant Temp

18 EWS Signal or Camshaft Sensor (MS43)

19 Activation VANOS Inlet Valve or Exhaust Valve (MS43)

20 “CHECK ENGINE” Light Failure

21 VANOS -Electrical Fault or Activation VANOS Inlet Valve (MS43)

22 Fuel Injector Cyl 3

23 Fuel Injector Cyl 6

24 Fuel Injector Cyl 4

25 Lambda Sensor Heater -Bank 1

27 Idle Control Valve – Malfunction

29 Ignition Coil Cyl 1

30 Ignition Coil Cyl 3

31 Ignition Coil Cyl 5

33 Fuel Injector Cyl 5

35 Aux. Air Injection System Relay

36 DME Main Relay

37 DME Main Relay : Delay

38 Clutch Switch -Plausibility

39 Brake Light Switch or Brake Light Test Switch

40 Brake Light Switch or Pedal Value Signal

42 Multi Function Steering Wheel- Plausibility

43 Multi Function Steering Wheel: Button

45 Multi Function Steering Wheel: Port

47 Temp Sensor -Downstream of Pre-Cat or Torque Limitation Level 1 (MS43)

48 DME Control Unit -Self Test 1

49 DME Control Unit or Torque Monitoring Level 2 (MS43)

50 EVAP Control Valve or Response Monitoring Level 2 (MS43)

51 Shut-off Valve -Charcoal Filter or Request Control Unit Reset (MS43)

52 Solenoid Valve -Exhaust Flap

53 Idle Speed Actuator

55 Lambda Sensor Heater -Bank 2

56 Ignition Current Feedback Resistor – Open Circuit

57 Knock sensor -Bank 1

58 DME Control Unit -Self Test 2

59 Knock Sensor -Bank 2

61 Lambda Sensor Heater -Bank 2 Post Cat

62 Aux. Air Injection System -Switching Valve

63 DME Control Unit or Ambient Temp Signal via CAN (MS43)

64 Plausibility – Ambient Temperature

65 Camshaft Position Sensor (Inlet MS43)

66 DME Control Unit

67 DME Control Unit

68 Tank Venting Valve

69 Fuel Pump Relay

70 DME Control Unit

71 DME Control Unit

72 DME Control Unit

74 AirCon Compressor Relay

75 Lambda Sensor Voltage -Bank 1

76 Lambda Sensor Voltage -Bank 2

77 Lambda Sensor Voltage -Bank 1 Post Cat

78 Lambda Sensor Voltage -Bank 2 Post Cat

79 Lambda Sensor Heater -Bank 1 Post Cat

80 ABS/ASC interface

81 MSR Signal -Active too Long

82 ABS/ASC Interface -Advance Adjustment

83 Crankshaft Sensor

90 Exhaust Temperature Pre Cat Conv – Bank 1

91 Exhaust Temperature Pre Cat Conv – Bank 2

92 Exhaust Temperature Post Cat Conv -Bank 1

93 Exhaust Temperature Post Cat Conv -Bank 2

94 Auxiliary Air -Air Mass Flow Sensor

95 Auxiliary Air Valve or Auxiliary Air Hose Blocked

96 Auxiliary Air Pump – Function

97 Auxiliary Air -Flow Rate too Low

98 Auxiliary Air -Flow Rate too High

99 Auxiliary Air Valve Jammed Open

100 DME Control Unit -Self-Test Failed

103 VANOS Error -Inlet Camshaft

104 VANOS Error -Exhaust Camshaft

105 VANOS Error -Position Inlet Camshaft

106 VANOS Error -Position Exhaust Camshaft

109 Throttle Valve Plausibility

110 Pedal Sensor Value Potentiometer 1

111 Pedal Sensor Value Potentiometer 2

112 TPS Potentiometer 1

113 TPS Potentiometer 2

114 Throttle Valve Final Stage

115 Reference Voltage -Voltage Regulator 1 or Throttle Pedal Adaptation (MS43)

116 Reference Voltage -Voltage Regulator 2

117 Plausibility -Pedal Position Sensor 1/2

118 Plausibility -TPS 1/2 or TPS1/Airflow Plausibility (MS43)

119 Throttle Valve Sensor -Mechanical Error or TPS2/Airflow Plausibility (MS43)

120 Plausibility Pedal Sensor or TPS

122 Engine Oil Temperature

123 Map Cooling Thermostat Control

124 Activation DISA Solenoid

125 Activation Electric Fan

126 Activation Tank Leak Pump Solenoid

127 Activation Pump Solenoid

128 DME/EWS Communication

129 CAN Signal SMG 1

130 CAN Signal ASC -Timeout

131 CAN Signal Instrument Cluster -Timeout

132 CAN Signal Instrument Cluster -Timeout

133 CAN Signal ASC -Timeout

134 SMG Intervention -Plausibility

135 Throttle Valve Re-Adaptation Required

136 Throttle Valve -Spring Test and Limp-home Position Failed

137 CAN Signal -Steering Angle Sensor

139 CAN Signal -Tank Level Sensor

140 Tank Leak Pump Solenoid – Reed Switch Open or Output Stage (MS43)

141 Tank Leak Pump Solenoid – Reed Switch Stuck Closed or Tank Level Sensor (MS43)

142 Tank Leak Pump Solenoid – Reed Switch Stuck Open or DMTL Module (MS43)

143 Tank Ventilation or Tank Leakage (MS43)

144 Fuel System – Large Leak Recognised

145 Fuel System – Small Leak Recognised

146 EVAP System Leak Detected (Small Leak) or Pedal Sensor Supply Voltage Pot 1 (MS43)

147 Pedal Position Sensor Potentiometer Supply Channel 1 (Pot 2 MS43)

149 Air Flow Sensor or Pedal Value Sensor Mismatch

150 Lambda Post Cat Bank 1 Max Limit

151 Lambda Post Cat Bank 2 Max Limit

152 Lambda Post Cat Bank 1 Min Limit

153 Lambda Pre Cat Bank 2 Max Limit

154 Lambda Pre Cat Bank 2 Min Limit

155 Lambda Pre Cat Bank 2 No Signal

156 Lambda Pre Cat Bank 1 No Signal

157 Lambda Post Cat Bank 1 Min Limit

159 Lambda Post Cat Bank 2 Max Limit

160 Lambda Post Cat Bank 2 (MS41) or Throttle Valve Stuck

161 Throttle Valve – Stuck

162 Throttle Valve -Control Deviation

168 Pedal Position Sensor Pot Supply 1 or MAP Cooling Thermostat Jammed (MS43)

169 Throttle Valve Output Stage Cut off after Fault

170 DME Control Unit -Self Test Failed

171 Plausibility – Throttle Valve

172 Pedal Sensor Potentiometer 1/2 Short Circuit

173 TPS Potentiometer 1/2 Short Circuit

174 Throttle Valve Potentiometer 1/2 Adaptation

175 Pedal Sensor 1 Adaptation

176 Pedal Sensor 2 Adaptation

186 Voltage Post Cat Bank 1

187 Voltage Post Cat Bank 2

188 Voltage Pre Cat Bank 1

189 Voltage Pre Cat Bank 2

190 EVAP -Reed Switch Open or Voltage Post Cat Bank 1 (MS43)

191 EVAP -Reed Switch Closed or Voltage Post Cat Bank 2 (MS43)

192 EVAP -Reed Switch Open

193 EVAP -Check Hoses

194 EVAP -Large Leak Detected

195 EVAP -Small Leak Detected

196 EVAP -Electrical Valve from LDP Pump or Barometric Pressure Sensor (MS43)

197 EVAP -Barometric Pressure Sensor

198 Cat Efficiency during Start -Bank 1

199 Cat Efficiency during Start -Bank 2

200 Lambda Regulation Bank 1 Pre Cat

201 Lambda Regulation Bank 2 Pre Cat

202 Lambda Regulation Bank 1 Post Cat

203 Lambda Regulation Bank 2 Post cat

204 Idle Control System -Idle speed not plausible

208 EWS -RPM Signal Error

209 EWS -Message Error

210 Ignition Feedback Resistor (ZSR)

211 Idle Speed Actuator -Mechanical

212 VANOS Bank 1 -Mechanical

214 Vehicle Speed Signal (VSS)

215 Lambda Sensor Bank 1 or ASC/MSR/EML -Interface not plausible

216 Lambda Sensor Bank 2 or EGS Position Signal

217 CAN bus error -EGS Signal not present

218 CAN module -Warning

219 CAN module -CAN Offline

220 Lambda Voltage Range Bank 1 Sensor 1

221 Lambda Voltage Range Bank 2 Sensor 1

222 Low Coolant Temperature or Lambda Sensor Control (MS43)

223 Lambda Sensor Switching Bank 1 Sensor 2

224 Lambda Sensor Switching Bank 2 Sensor 2

225 Cat Efficiency Bank 1

226 Cat Efficiency Bank 2

227 Mixture Deviation Bank 1

228 Mixture Deviation Bank 2

229 Lambda Sensor Switching Bank 1

230 Lambda Sensor Switching Bank 2

231 Lambda Sensor Switching Bank 1 Pre Cat

232 Lambda Sensor Switching Bank 2 Pre Cat

233 Catalytic Converter Overall Efficiency Bank 1

234 Catalytic Converter Overall Efficiency Bank 2

235 Lambda Heater Bank 1 Post Cat or Pre Cat Signal (MS43)

236 Lambda Heater Bank 2 Post Cat or Pre Cat Signal (MS43)

238 Misfire Cyl 1

239 Misfire Cyl 2

240 Misfire Cyl 3

241 Misfire Cyl 4

242 Misfire Cyl 5

243 Misfire Cyl 6

244 Crankshaft Interval Timing

245 Aux Air Injection System Bank 1

246 Aux Air Injection System Bank 2

247 Aux Air Injection System -Incorrect Flow Detected

248 Pre Cat Converter Efficiency -Bank 1

249 Pre Cat Converter Efficiency -Bank 2

250 Tank Venting Valve -Function

251 Tank Ventilation Diagnosis Error

252 Tank Ventilation System Vacuum

253 Activated Charcoal Filter Shut-off Valve Stuck Shut

254 Tank Ventilation System -Large Air Leak

255 Tank Ventilation System -Valve Stuck Open

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