Diagnostic Trouble Code (DTC) tables (Engine Code AHA): Notes
Bosch Motronic ME 5.9.2 OBD System Strategy document
Fuel and air ratios
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illumination |
| P0102 | Mass or Volume Air Flow A Circuit Low Input |
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| P0103 | Mass or Volume Air Flow A Circuit High Input |
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| P0112 | Intake Air Temperature Sensor 1 Circuit Low |
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Short to ground >135 ° C | 2 Seconds |
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| P0113 | Intake Air Temperature Sensor 1 Circuit High |
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Short to battery + 45 ° C | 2 Seconds |
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| P0116 | Engine Coolant Temperature Circuit Range/Performance |
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Stuck on sensor, no change on signal after start | Engine start temperature | 120 Seconds |
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| P0117 | Engine Coolant Temperature Sensor 1 Circuit Low Input |
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0.5 Seconds |
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| P0118 | Engine Coolant Temperature Sensor 1 Circuit High Input |
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0.5 Seconds |
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| P0121 | Throttle/Pedal Position Sensor A Circuit Range/Performance |
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Engine temperature - >70 ° C | 1 Second |
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| P0122 | Throttle/Pedal Position Sensor A Circuit Low Input |
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Signal low, short to ground 157 mV | 0.5 Seconds |
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| P0123 | Throttle/Pedal Position Sensor A Circuit High Input |
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Signal high, short to battery positive >4.8 V | 0.5 Seconds |
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| P0130 | O2 Sensor Circuit Bank 1 Sensor 1 |
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Short circuit, 0.04 V to 0.04 V | Sensor heated up after 150 seconds | 30 Seconds |
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| P0131 | O2 Circuit Low Voltage (Bank 1, Sensor 1) |
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Short to ground Signal 0.15 V | Sensor heated up after 150 seconds | 10 Seconds |
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| P0132 | O2 Circuit High Voltage (Bank 1, Sensor 1) |
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Short to battery +- Signal >1.05 V | Sensor heated up after 150 seconds | 10 Seconds |
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| P0133 | O2 Circuit Slow Response (Bank 1, Sensor 1) |
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Threshold for signal length >2.1 seconds |
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25 Seconds |
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| P0134 | O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1) |
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Open circuit or no activity, 0.4 - 0.538 V | Sensor heated up after 150 sec. | 20 Seconds |
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| P0136 | O2 Sensor Circuit (Bank 1, Sensor 2) |
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Short circuit, -0.04 to 0.04 V | Sensor heated up after 150 seconds, closed loop rear sensor | 60 Seconds |
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| P0137 | O2 Circuit Low Voltage (Bank 1, Sensor 2) |
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Short to ground Signal 0.15 V |
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10 Seconds |
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| P0138 | O2 Circuit High Voltage (Bank 1, Sensor 2) |
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Short to battery + signal >1.05 V |
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10 Seconds |
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| P0140 | O2 Circuit No Activity Detected (Bank 1, Sensor 2) |
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Open circuit or no activity, 0.4 0.5 V |
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60 Seconds |
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| P0150 | O2 Sensor Circuit Bank 2 Sensor 1 |
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Short circuit, -0.04 to 0.04 V |
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30 Seconds |
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| P0151 | O2 Sensor Circuit Low Voltage Bank 2 Sensor 1 |
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Short to ground Signal 0.15 V |
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10 Seconds |
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| P0152 | O2 Sensor Circuit High Voltage Bank 2 Sensor 1 |
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Short to battery + Signal > 1.05 V |
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10 Seconds |
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| P0153 | O2 Sensor Circuit Slow Response Bank 2 Sensor 1 |
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Threshold for signal length >2.1 sec |
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25 Seconds |
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| P0154 | O2 Sensor Circuit No Activity Detected (Bank 2, Sensor 1) |
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Open circuit or no activity, 0.4 - 0.6 V |
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20 Seconds |
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| P0156 | O2 Sensor Circuit (Bank 2, Sensor 2) |
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Short circuit, -0.04 to 0.04 V |
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60 Seconds |
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| P0157 | O2 Sensor Circuit Low Voltage Bank 2 Sensor 2 |
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Short to ground-signal 0.15 V |
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10 Seconds |
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| P0158 | O2 Sensor Circuit High Voltage Bank 2 Sensor 2 |
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Short to battery + signal >1.05 V |
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10 Seconds |
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| P0160 | O2 Sensor Circuit No Activity Detected Bank 2 Sensor 2 |
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Open circuit or no activity, 0.4.05 V |
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60 Seconds |
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Ignition system
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illumination |
| P0300 | Random Misfire Detected |
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| P0301 | Cylinder 1 Misfire Detected |
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| P0302 | Cylinder 2 Misfire Detected |
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| P0303 | Cylinder 3 Misfire Detected |
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| P0304 | Cylinder 4 Misfire Detected |
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| P0305 | Cylinder 5 Misfire Detected |
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| P0306 | Cylinder 6 Misfire Detected |
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| P0321 | Ignition/Distributor Engine Speed Input Circuit Range/Performance |
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Counting teeth, actual numbers of teeth, (+/-) 3 teeth | 0.2 Seconds |
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| P0322 | Ignition/Distributor Engine Speed Input Circuit No Signal |
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Comparison with phase sensor No signal | 5 Seconds |
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Additional exhaust regulation
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illumination |
| P0411 | Secondary Air Injection System Incorrect Flow Detected |
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| P0422 | Main Catalyst, Bank 1 Efficiency Below Threshold |
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Rear/Front =AR->0.4 0.5 |
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100 Seconds |
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| P0432 | Main Catalyst Efficiency Below Threshold (Bank 2) |
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Rear/Front =AR->0.4 0.5 |
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100 Seconds |
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| P0441 | Evaporative Emission System Incorrect Purge Flow |
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Lambda integrator deviation and reduction of bypass airflow (-)6 6 % of lambda deviation and (-)0.7 kg/h bypass airflow reduction | Idle | 25 Seconds |
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| P0442 | Evaporative Emission System Leak Detected (Small Leak) |
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Rear/Front = AR->0.4 0.5 |
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100 Seconds |
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| P0445 | Evaporative Emission System Leak Detected (gross leak/no flow) |
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Pressure drop within predetermined time 2 Seconds |
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Speed and idle control
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illumination |
| P0501 | Vehicle Speed Sensor A Range/Performance |
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Comparison with fuel cut-off- speed 1.94 mph |
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2.5 Seconds |
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| P0506 | Idle Air Control System RPM Lower Than Expected |
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Idle correction deviation> 100 rpm |
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15 Seconds |
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| P0507 | Idle Air Control System RPM Higher Than Expected |
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Idle correction deviation> 200 rpm |
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15 Seconds |
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Control module and output signals
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illumination |
| P0601 | Internal Control Module Memory Check Sum Error |
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Calculate checksum | 10 Seconds |
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| P0603 | Internal Control Module Keep Alive Memory (KAM) Error |
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Comparison with stored values | 0.1 Second |
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| P0604 | Internal Control Module Random Access Memory (RAM) Error |
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Comparison with stored values | 2 Seconds |
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| P0605 | Internal Control Module Read Only Memory (ROM) Error |
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Comparison with stored values | 10 Seconds |
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Automatic Transmission
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illumination |
| P0705 | Transmission Range Sensor Circuit Malfunction (PRNDOL Input) | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS | Fought code |
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2.5 Seconds |
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| P0717 | Input/Turbine Speed Sensor A Circuit No Signal | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS | Different speed, vehicle speed, 416 320 rpm |
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2.5 Seconds |
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| P0722 | Output Speed Sensor Circuit No Signal | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS | Different speed, vehicle speed, 416 320 rpm |
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2.5 Seconds |
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| P0727 | Engine Speed Input Circuit No Signal | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS | Comparison of stored value with active level |
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0.3 Seconds |
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| P0732 | Gear 2 Incorrect Ratio | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS | Different speed, 416 320 rpm | 2.5 Seconds |
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| P0733 | Gear 3 Incorrect Ratio | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS | Different speed, 416 320 rpm | 2.5 Seconds |
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| P0734 | Gear 4 Incorrect Ratio | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS | Different speed, 416 320 rpm | 2.5 Seconds |
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| P0735 | Gear 5 Incorrect Ratio | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS | Different speed, 416 320 rpm | 2.5 Seconds |
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| P0741 | Torque Converter Clutch Circuit Performance or Stuck Off | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS | Comparison with stored values-Slip differences >448 rpm > 4 times | 1 Seconds |
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| P0753 | Shift Solenoid A Electrical | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS |
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| P0758 | Shift Solenoid B Electrical | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS |
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| P0763 | Shift Solenoid C Electrical | Refer to 38 AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS |
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