MG Rover 25 / ZR
Fault Codes
1.4 Petrol
Years 2001 - 2005
If a fault occurs, some of the vehicles’ systems will generate and store a fault code
The diagnostic socket is located under the drivers side of the facia, adjacent to the centre console
MG Rover 25 / ZR Petrol 1.4
Note: The following list of OBD-II trouble codes is a generic list applicable to all models equipped with an OBD-II system, although not all codes apply to all models. P0000 No fault found P0001 Fuel volume regulator control circuit open P0002 Fuel volume regulator control circuit range/performance P0003 Fuel volume regulator control circuit low P0004 Fuel volume regulator control circuit high P0005 Fuel shutoff valve (A) control circuit open P0006 Fuel shutoff valve (A) control circuit low P0007 Fuel shutoff valve (A) control circuit high P0008 Engine position system performance (bank 1) P0009 Engine position system performance (bank 2) P0010 Intake camshaft position actuator circuit open (bank 1) P0011 “A” Camshaft position - timing over-advanced (bank 1) P0012 “A” Camshaft position - timing over-retarded (bank 1) P0013 “B” Camshaft position - actuator circuit malfunction (bank 1) P0014 “B” Camshaft position - timing over-advanced (bank 1) P0015 “B” Camshaft position - timing over-retarded (bank 1) P0016 Crankshaft position/camshaft position, bank 1, sensor A - correlation P0017 Crankshaft position/camshaft position, bank 1, sensor B - correlation P0018 Crankshaft position/camshaft position, bank 2, sensor A - correlation P0019 Crankshaft position/camshaft position, bank 2, sensor B - correlation P0020 Intake camshaft position actuator circuit open (bank 2) P0021 Intake camshaft position-timing over- advanced (bank 2) P0022 Intake camshaft position-timing over-retarded (bank 2) P0023 “B” Camshaft position - actuator circuit (bank 2) P0024 “B” Camshaft position - timing over-advanced or system performance problem (bank 2) P0025 “B” Camshaft position - timing over-retarded (bank 2) P0026 Intake valve control solenoid circuit, bank 1 - range/performance problem P0027 Exhaust valve control solenoid circuit, bank 1 - range/performance problem P0028 Intake valve control solenoid circuit, bank 2 - range/performance problem P0029 Exhaust valve control solenoid circuit, bank 2 - range/performance problem P0030 HO2S heater control circuit (bank 1, sensor 1) P0031 HO2S heater control circuit low (bank 1, sensor 1) P0032 HO2S heater control circuit high (bank 1, sensor 1) P0033 Turbocharger bypass valve control circuit P0034 Turbocharger bypass valve control circuit low P0035 Turbocharger bypass valve control circuit high P0036 HO2S heater control circuit (bank 1 sensor 2) P0037 HO2S heater control circuit low (bank 1, sensor 2) P0038 HO2S heater control circuit high (bank 1, sensor 2) P0039 Turbocharger bypass valve control circuit - range/performance problem P0040 Upstream oxygen sensors swapped from bank to bank (HO2S - bank 1, sensor 1/ bank 2, sensor 1) P0041 Downstream oxygen sensors swapped from bank to bank (HO2S - bank 1, sensor 2/ bank 2, sensor 2) P0042 HO2S heater control circuit malfunction (bank 1, sensor 3) P0043 HO2S heater control circuit low (bank 1, sensor 3) P0044 HO2S heater control circuit high (bank 1, sensor 3) P0045 Turbo/supercharger boost control solenoid - circuit open P0046 Turbo/supercharger boost control solenoid - circuit range/performance problem P0047 Turbo/supercharger boost control solenoid - circuit low P0048 Turbo/supercharger boost control solenoid - circuit high P0049 Turbo/supercharger turbine - over-speed P0050 HO2S heater control circuit (bank 2, sensor 1) P0051 HO2S heater control circuit low (bank 2, sensor 1) P0052 HO2S heater control circuit high (bank 2, sensor 1) P0053 HO2S heater resistance (bank 1, sensor 1) P0054 HO2S heater resistance (bank 1, sensor 2) P0055 HO2S heater resistance (bank 1, sensor 3) P0056 HO2S heater control circuit malfunction (bank 2, sensor 2) P0057 HO2S heater control circuit low (bank 2, sensor 2) P0058 HO2S heater control circuit high (bank 2, sensor 2) P0059 HO2S heater resistance (bank 2, sensor 1) P0060 HO2S heater resistance (bank 2, sensor 2) P0061 HO2S heater resistance (bank 2, sensor 3) P0062 HO2S heater control circuit malfunction (bank 2, sensor 3) P0063 HO2S heater control circuit low (bank 2, sensor 3) P0064 HO2S heater control circuit high (bank 2, sensor 3) P0065 Air assisted injector control range/performance problem P0066 Air assisted injector control circuit or circuit low P0067 Air assisted injector control circuit high P0068 Throttle position (TP) sensor inconsistent with mass air flow (MAF) sensor P0069 Manifold pressure (MAP) sensor - barometric pressure correlation P0070 Ambient air temperature sensor circuit problem P0071 Ambient air temperature sensor range/performance problem P0072 Ambient air temperature sensor circuit low input P0073 Ambient air temperature sensor circuit high input P0074 Ambient air temperature sensor circuit intermittent P0075 Intake valve control solenoid circuit (bank 1) P0076 Intake valve control solenoid circuit low (bank 1) P0077 Intake valve control solenoid circuit high (bank 1) P0078 Exhaust valve control solenoid circuit malfunction (bank 1) P0079 Exhaust valve control solenoid circuit low (bank 1) P0080 Exhaust valve control solenoid circuit high (bank 1) P0081 Intake valve control solenoid circuit (bank 2) P0082 Intake valve control solenoid circuit low (bank 2) P0083 Intake valve control solenoid circuit high (bank 2) P0084 Exhaust valve control solenoid circuit malfunction (bank 2) P0085 Exhaust valve control solenoid circuit low (bank 2) P0086 Exhaust valve control solenoid circuit high (bank 2) P0086 Exhaust valve control solenoid, bank 2 - circuit high P0087 Fuel rail/system pressure - too low P0088 Fuel rail/system pressure - too high P0089 Fuel pressure regulator - performance problem P0090 Fuel metering solenoid - open circuit P0091 Fuel metering solenoid - short to ground P0092 Fuel metering solenoid - short to positive P0093 Fuel system leak detected - large leak P0094 Fuel system leak detected - small leak P0095 Intake air temperature (IAT) sensor 2 - circuit malfunction P0096 Intake air temperature (IAT) sensor 2 - circuit range/performance problem P0097 Intake air temperature (IAT) sensor 2 - circuit low input P0098 Intake air temperature (IAT) sensor 2 - circuit high input P0099 Intake air temperature (IAT) sensor 2 - circuit intermittent/erratic P0100 Mass air flow or volume air flow circuit malfunction P0101 Mass air flow or volume air flow circuit, range or performance problem P0102 Mass air flow or volume air flow circuit, low input P0103 Mass air flow or volume air flow circuit, high input P0104 Mass air flow or volume air flow circuit, intermittent P0105 Manifold absolute pressure or barometric pressure circuit malfunction P0106 Manifold absolute pressure or barometric pressure circuit, range or performance problem P0107 Manifold absolute pressure or barometric pressure circuit, low input P0108 Manifold absolute pressure or barometric pressure circuit, high input P0109 Manifold absolute pressure or barometric pressure circuit, intermittent P0110 Intake air temperature circuit malfunction P0111 Intake air temperature circuit, range or performance problem P0112 Intake air temperature circuit, low input P0113 Intake air temperature circuit, high input P0114 Intake air temperature circuit, intermittent P0115 Engine coolant temperature circuit P0116 Engine coolant temperature circuit range/performance problem P0117 Engine coolant temperature circuit, low input P0118 Engine coolant temperature circuit, high input P0119 Engine coolant temperature circuit, intermittent P0120 Throttle position or pedal position sensor/switch circuit malfunction P0121 Throttle position or pedal position sensor/switch circuit, range or performance problem P0122 Throttle position or pedal position sensor/switch circuit, low input P0123 Throttle position or pedal position sensor/switch circuit, high input P0124 Throttle position or pedal position sensor/switch circuit, intermittent P0125 Insufficient coolant temperature for closed loop fuel control P0126 Insufficient coolant temperature for stable operation P0127 Intake air temperature too high P0128 Coolant thermostat (coolant temperature below thermostat regulating temperature) P0129 Barometric pressure - too low P0130 O2 sensor circuit malfunction (bank 1, sensor 1) P0131 O2 sensor circuit, low voltage (bank 1, sensor 1) P0132 O2 sensor circuit, high voltage ( bank 1, sensor 1) P0133 O2 sensor circuit, slow response (bank 1, sensor 1) P0134 O2 sensor circuit - no activity detected (bank 1, sensor 1) P0135 O2 sensor heater circuit malfunction (bank 1, sensor 1) P0136 O2 sensor circuit malfunction (bank 1, sensor 2) P0137 O2 sensor circuit, low voltage (bank 1, sensor 2) P0138 O2 sensor circuit, high voltage (bank 1, sensor 2) P0139 O2 sensor circuit, slow response (bank 1, sensor 2) P0140 O2 sensor circuit - no activity detected (bank 1, sensor 2) P0141 O2 sensor heater circuit malfunction (bank 1, sensor 2) P0142 O2 sensor circuit malfunction (bank 1, sensor 3) P0143 O2 sensor circuit, low voltage (bank 1, sensor 3) P0144 O2 sensor circuit, high voltage (bank 1, sensor 3) P0145 O2 sensor circuit, slow response (bank 1, sensor 3) P0146 O2 sensor circuit - no activity detected (bank 1, sensor 3) P0147 O2 sensor heater circuit malfunction (bank 1, sensor 3) P0148 Fuel delivery error P0149 Fuel timing error P0150 O2 sensor circuit malfunction (bank 2, sensor 1) P0151 O2 sensor circuit, low voltage (bank 2, sensor 1) P0152 O2 sensor circuit, high voltage (bank 2, sensor 1) P0153 O2 sensor circuit, slow response (bank 2, sensor 1) P0154 O2 sensor circuit - no activity detected (bank 2, sensor 1) P0155 O2 sensor heater circuit malfunction (bank 2, sensor 1) P0156 O2 sensor circuit malfunction (bank 2, sensor 2) P0157 O2 sensor circuit, low voltage (bank 2, sensor 2) P0158 O2 sensor circuit, high voltage (bank 2, sensor 2) P0159 O2 sensor circuit, slow response (bank 2, sensor 2) P0160 O2 sensor circuit - no activity detected (bank 2, sensor 2) P0161 O2 sensor heater circuit malfunction (bank 2, sensor 2) P0162 O2 sensor circuit malfunction (bank 2, sensor 3) P0163 O2 sensor circuit, low voltage (bank 2, sensor 3) P0164 O2 sensor circuit, high voltage (bank 2, sensor 3) P0165 O2 sensor circuit, slow response (bank 2, sensor 3) P0166 O2 sensor circuit - no activity detected (bank 2, sensor 3) P0167 O2 sensor heater circuit malfunction (bank 2, sensor 3) P0168 Fuel temperature too high P0169 Incorrect fuel composition P0170 Fuel trim malfunction (bank 1) P0171 System too lean (bank 1) P0172 System too rich (bank 1) P0173 Fuel trim malfunction (bank 2) P0174 System too lean (bank 2) P0175 System too rich (bank 2) P0176 Fuel composition sensor circuit malfunction P0177 Fuel composition sensor circuit, range or performance problem P0178 Fuel composition sensor circuit, low input P0179 Fuel composition sensor circuit, high input P0180 Fuel temperature sensor A circuit malfunction P0181 Fuel temperature sensor A circuit, range or performance problem P0182 Fuel temperature sensor A circuit, low input P0183 Fuel temperature sensor A circuit, high input P0184 Fuel temperature sensor A circuit, intermittent P0185 Fuel temperature sensor B circuit malfunction P0186 Fuel temperature sensor B circuit, range or performance problem P0187 Fuel temperature sensor B circuit, low input P0188 Fuel temperature sensor B circuit, high input P0189 Fuel temperature sensor B circuit, intermittent P0190 Fuel rail pressure sensor circuit malfunction P0191 Fuel rail pressure sensor circuit, range or performance problem P0192 Fuel rail pressure sensor circuit, low input P0193 Fuel rail pressure sensor circuit, high input P0194 Fuel rail pressure sensor circuit, intermittent P0195 Engine oil temperature sensor malfunction P0196 Fuel rail pressure sensor circuit, range or performance problem P0197 Fuel rail pressure sensor circuit, low input P0198 Fuel rail pressure sensor circuit, high input P0199 Fuel rail pressure sensor circuit, intermittent P0200 Injector circuit malfunction P0201 Injector circuit malfunction - cylinder no. 1 P0202 Injector circuit malfunction - cylinder no. 2 P0203 Injector circuit malfunction - cylinder no. 3 P0204 Injector circuit malfunction - cylinder no. 4 P0205 Injector circuit malfunction - cylinder no. 5 P0206 Injector circuit malfunction - cylinder no. 6 P0207 Injector circuit malfunction - cylinder no. 7 P0208 Injector circuit malfunction - cylinder no. 8 P0209 Injector circuit malfunction - cylinder no. 9 P0210 Injector circuit malfunction - cylinder no. 10 P0211 Injector circuit malfunction - cylinder no. 11 P0212 Injector circuit malfunction - cylinder no. 12 P0213 Cold start injector no. 1 malfunction P0214 Cold start injector no. 2 malfunction P0215 Engine shut-off solenoid malfunction P0216 Injection timing control circuit malfunction P0217 Engine overheating condition P0218 Transmission overheating condition P0219 Engine overspeed condition P0220 Throttle position or pedal position sensor/switch B circuit malfunction P0221 Throttle position or pedal position sensor/switch B, range or performance problem P0222 Throttle position or pedal position sensor/switch B circuit, low input P0223 Throttle position or pedal position sensor/switch B circuit, high input P0224 Throttle position or pedal position sensor/switch B circuit, intermittent P0225 Throttle position or pedal position sensor/switch C circuit malfunction P0226 Throttle position or pedal position sensor/switch C, range or performance problem P0227 Throttle position or pedal position sensor/switch C circuit, low input P0228 Throttle position or pedal position sensor/switch C circuit, high input P0229 Throttle position or pedal position sensor/switch C circuit, intermittent P0230 Fuel pump primary circuit malfunction P0231 Fuel pump secondary circuit, low P0232 Fuel pump secondary circuit, high P0233 Fuel pump secondary circuit, intermittent P0234 Engine overboost condition P0235 Turbocharger boost sensor A circuit malfunction P0236 Turbocharger boost sensor A circuit, range or performance problem P0237 Turbocharger boost sensor A circuit, low P0238 Turbocharger boost sensor A circuit, high P0239 Turbocharger boost sensor B circuit malfunction P0240 Turbocharger boost sensor B circuit, range or performance problem P0241 Turbocharger boost sensor B circuit, low P0242 Turbocharger boost sensor B circuit, high P0243 Turbocharger wastegate solenoid A malfunction P0244 Turbocharger wastegate solenoid A, range or performance problem P0245 Turbocharger wastegate solenoid A, low P0246 Turbocharger wastegate solenoid A, high P0247 Turbocharger wastegate solenoid B, malfunction P0248 Turbocharger wastegate solenoid B, range or performance problem P0249 Turbocharger wastegate solenoid B, low P0250 Turbocharger wastegate solenoid B, high P0251 Injection pump fuel metering control A, malfunction (cam/rotor/injector) P0252 Injection pump fuel metering control A, range or performance problem (cam/rotor/injector) P0253 Injection pump fuel metering control A, low (cam/rotor/injector) P0254 Injection pump fuel metering control A, high (cam/rotor/injector) P0255 Injection pump fuel metering control A, intermittent (cam/rotor/injector) P0256 Injection pump fuel metering control B malfunction (cam/rotor/injector) P0257 Injection pump fuel metering control B, range or performance problem (cam/rotor/injector) P0258 Injection pump fuel metering control B, low (cam/rotor/injector) P0259 Injection pump fuel metering control B, high (cam/rotor/injector) P0260 Injection pump fuel metering control B, intermittent (cam/rotor/injector) P0261 Cylinder no. 1 injector circuit, low P0262 Cylinder no. 1 injector circuit, high P0263 Cylinder no. 1 contribution/balance fault P0264 Cylinder no. 2 injector circuit, low P0265 Cylinder no. 2 injector circuit, high P0266 Cylinder no. 2 contribution/balance fault P0267 Cylinder no. 3 injector circuit, low P0268 Cylinder no. 3 injector circuit, high P0269 Cylinder no. 3 contribution/balance fault P0270 Cylinder no. 4 injector circuit, low P0271 Cylinder no. 4 injector circuit, high P0272 Cylinder no. 4 contribution/balance fault P0273 Cylinder no. 5 injector circuit, low P0274 Cylinder no. 5 injector circuit, high P0275 Cylinder no. 5 contribution/balance fault P0276 Cylinder no. 6 injector circuit, low P0277 Cylinder no. 6 injector circuit, high P0278 Cylinder no. 6 contribution/balance fault P0279 Cylinder no. 7 injector circuit, low P0280 Cylinder no. 7 injector circuit, high P0281 Cylinder no. 7 contribution/balance fault P0282 Cylinder no. 8 injector circuit, low P0283 Cylinder no. 8 injector circuit, high P0284 Cylinder no. 8 contribution/balance fault P0285 Cylinder no. 9 injector circuit, low P0286 Cylinder no. 9 injector circuit, high P0287 Cylinder no. 9 contribution/balance fault P0288 Cylinder no. 10 injector circuit, low P0289 Cylinder no. 10 injector circuit, high P0290 Cylinder no. 10 contribution/balance fault P0291 Cylinder no. 11 injector circuit, low P0292 Cylinder no. 11 injector circuit, high P0293 Cylinder no. 11 contribution/balance fault P0294 Cylinder no. 12 injector circuit, low P0295 Cylinder no. 12 injector circuit, high P0296 Cylinder no. 12 contribution/balance fault P0297 Vehicle over-speed condition P0298 Engine oil over temperature P0300 Random/multiple cylinder misfire detected P0301 Cylinder no. 1 misfire detected P0302 Cylinder no. 2 misfire detected P0303 Cylinder no. 3 misfire detected P0304 Cylinder no. 4 misfire detected P0305 Cylinder no. 5 misfire detected P0306 Cylinder no. 6 misfire detected P0307 Cylinder no. 7 misfire detected P0308 Cylinder no. 8 misfire detected P0309 Cylinder no. 9 misfire detected P0310 Cylinder no. 10 misfire detected P0311 Cylinder no. 11 misfire detected P0312 Cylinder no. 12 misfire detected P0313 Misfire detected with low fuel P0314 Single cylinder misfire (cylinder not specified) P0315 Crankshaft position system - variation not learned P0316 Misfire detected during startup - first 1000 revolutions P0317 Rough road hardware not present P0318 Rough road sensor signal A - circuit malfunction P0319 Rough road sensor signal B - circuit malfunction P0320 Crankshaft position (CKP) sensor/engine speed (RPM) sensor - circuit malfunction P0321 Crankshaft position (CKP) sensor/engine speed (RPM) sensor - range or performance problem P0322 Crankshaft position (CKP) sensor/engine speed (RPM) sensor - no signal P0323 Crankshaft position (CKP) sensor/engine speed (RPM) sensor - circuit intermittent P0324 Knock control system error P0325 Knock sensor no. 1 circuit malfunction (bank 1 or single sensor) P0326 Knock sensor no. 1 circuit, range or performance problem (bank 1 or single sensor) P0327 Knock sensor no. 1 circuit, low input (bank 1 or single sensor) P0328 Knock sensor no. 1 circuit, high input (bank 1 or single sensor) P0329 Knock sensor no. 1 circuit, intermittent (bank 1 or single sensor) P0330 Knock sensor no. 2 circuit malfunction (bank 2) P0331 Knock sensor no. 2 circuit, range or performance problem (bank 2) P0332 Knock sensor no. 2 circuit, low input (bank 2) P0333 Knock sensor no. 2 circuit, high input (bank 2) P0334 Knock sensor no. 2 circuit - intermittent (bank 2) P0335 Crankshaft position sensor “A” - circuit malfunction P0336 Crankshaft position sensor “A” - range or performance problem P0337 Crankshaft position sensor “A” - low input P0338 Crankshaft position sensor “A” - high input P0339 Crankshaft position sensor “A” - circuit intermittent P0340 Camshaft position sensor “A” - circuit malfunction (bank 1) P0341 Camshaft position sensor “A” - range or performance problem (bank 1) P0342 Camshaft position sensor “A” - low input (bank 1) P0343 Camshaft position sensor “A” - high input (bank 1) P0344 Camshaft posit...
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