Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Inspection Mode A
| DTC | Description and trouble part | Condition | Number of driving cycles on the detecting condition |
|---|---|---|---|
| P0087 | FUEL RAIL/SYSTEM PRESSURE - TOO LOW BANK 1 | Complete diagnosis with inspection mode B as well. | 1 |
| P0088 | FUEL RAIL/SYSTEM PRESSURE - TOO HIGH BANK 1 | Complete diagnosis with inspection mode B as well. | 1 |
| P0128 | COOLANT THERMOSTAT (COOLANT TEMPERATURE BELOW THERMOSTAT REGULATING TEMPERATURE) | - | 2 |
| P013A | O2 SENSOR SLOW RESPONSE - RICH TO LEAN BANK 1 SENSOR 2 | - | 2 |
| P013E | O2 SENSOR DELAYED RESPONSE - RICH TO LEAN BANK 1 SENSOR 2 | - | 2 |
| P0141 | O2 SENSOR HEATER CIRCUIT BANK 1 SENSOR 2 | - | 2 |
| P014C | A/F/O2 SENSOR SLOW RESPONSE - RICH TO LEAN BANK 1 SENSOR 1 | - | 2 |
| P014D | A/F/O2 SENSOR SLOW RESPONSE - LEAN TO RICH BANK 1 SENSOR 1 | - | 2 |
| P015A | A/F/O2 SENSOR DELAYED RESPONSE - RICH TO LEAN BANK 1 SENSOR 1 | - | 2 |
| P015B | A/F/O2 SENSOR DELAYED RESPONSE - LEAN TO RICH BANK 1 SENSOR 1 | - | 2 |
| P0171 | SYSTEM TOO LEAN BANK 1 | Complete diagnosis with inspection mode B as well. | 2 |
| P0172 | SYSTEM TOO RICH BANK 1 | Complete diagnosis with inspection mode B as well. | 2 |
| P0300 | RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED | Complete diagnosis with inspection mode B as well. | 2 |
| P0301 | CYLINDER 1 MISFIRE DETECTED | Complete diagnosis with inspection mode B as well. | 2 |
| P0302 | CYLINDER 2 MISFIRE DETECTED | Complete diagnosis with inspection mode B as well. | 2 |
| P0303 | CYLINDER 3 MISFIRE DETECTED | Complete diagnosis with inspection mode B as well. | 2 |
| P0304 | CYLINDER 4 MISFIRE DETECTED | Complete diagnosis with inspection mode B as well. | 2 |
| P0459 | EVAP SYSTEM (CPC) PURGE CONTROL VALVE "A" CIRCUIT HIGH | - | 2 |
| P0562 | SYSTEM VOLTAGE LOW | - | 1 |
| P0563 | SYSTEM VOLTAGE HIGH | - | 1 |
| P2096 | POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1 | Complete diagnosis with inspection mode B as well. | 2 |
| P2097 | POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1 | Complete diagnosis with inspection mode B as well. | 2 |
| P2195 | A/F/O2 SENSOR SIGNAL BIASED/STUCK LEAN BANK 1 SENSOR 1 | - | 2 |
| P2196 | A/F/O2 SENSOR SIGNAL BIASED/STUCK RICH BANK 1 SENSOR 1 | - | 2 |
| P2270 | O2 SENSOR SIGNAL BIASED/STUCK LEAN BANK 1 SENSOR 2 | - | 2 |
| P2271 | O2 SENSOR SIGNAL BIASED/STUCK RICH BANK 1 SENSOR 2 | - | 2 |
When performing inspection mode A on a public road, pay sufficient attention to the traffic condition and give the highest priority to safe driving.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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