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.
Diagnostic Trouble Code Chart
2012 Mitsubishi Lancer RalliartSECTION Diagnostic Trouble Code Chart
WARNING: This page is about a different variant/trim than selected.
CAUTION:
During diagnosis, a diagnostic trouble code associated with other system may be set when the ignition switch is turned on with connector(s) disconnected. On completion, confirm all systems for diagnostic trouble code(s). If diagnostic trouble code(s) are set, erase them all.
DIAGNOSTIC TROUBLE CODE CHART
| Diagnostic trouble code No. | Diagnostic item |
|---|---|
| P0703 | Malfunction of stoplight switch |
| P0705 | Malfunction of transmission range switch |
| P0711 | Malfunction of the transmission fluid temperature sensor |
| P0712 | Malfunction of the transmission fluid temperature sensor (short) |
| P0713 | Malfunction of the transmission fluid temperature sensor (open) |
| P0715 | Malfunction of primary pulley speed sensor |
| P0720 | Malfunction of secondary pulley speed sensor |
| P0725 | Malfunction of engine speed |
| P0740 | Malfunction of lockup solenoid valve |
| P0741 | Abnormality in lockup function |
| P0745 | Malfunction of line pressure solenoid valve |
| P0746 | Abnormality in hydraulic control system function |
| P0776 | Abnormality in secondary pressure solenoid valve function |
| P0778 | Malfunction of secondary pressure solenoid valve |
| P0815 | Malfunction of paddle shift up switch < Vehicles with sport mode > |
| P0816 | Malfunction of paddle shift down switch < Vehicles with sport mode > |
| P0826 | Malfunction of sport mode shift switch < Vehicles with sport mode > |
| P0840 | Malfunction of secondary pressure sensor |
| P0841 | Abnormality in line pressure sensor function |
| P0868 | Secondary pressure drop |
| P0882 | Malfunction of system power supply (Low) |
| P0883 | Malfunction of system power supply (High) |
| P1637 | Malfunction of memory backup |
| P1706 | Malfunction of throttle signal |
| P1710 | Malfunction of vehicle speed signal |
| P1723 | Abnormality in speed sensor system function |
| P1740 | Malfunction of lockup/select switching solenoid valve |
| P1745 | Monitoring of percentage change in gear ratio |
| P1773 | Malfunction of ABS |
| P1777 | Malfunction of stepper motor |
| P1778 | Abnormality in stepper motor function |
| P1902 | Malfunction of engine system |
| U0001 | Malfunction of CAN communication circuit |
| U0100 | CAN time-out error (Engine) |
| U0121 | CAN time-out error (ABS) |
| U0141 | CAN time-out error (ETACS) |
RENDER: 1.0x
NO RELATED
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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.