NOTE: If a module or component is suspected and the vehicle remains under manufacturer's warranty, refer to the warranty manual (subsection B1.2) before installing a new module/component, or determine if there is any previously approved special program in effect.
NOTE: Generic scan tools cannot read the codes listed or can only read 5-digit codes. Match the 5 digits from the scan tool with the first 5 digits of the listed 7-digit code to identify the fault (the last 2 digits provide additional information readable by the manufacturer-approved diagnostic system).
NOTE: When performing voltage or resistance tests, always use a digital multimeter (DMM) with three decimal places of accuracy and a current calibration certificate. Always include the resistance of the DMM leads when testing resistance.
NOTE: Before starting diagnostic programs using Pinpoint tests, check and eliminate basic faults.
NOTE: If DTCs are logged and the fault is not present after performing the Pinpoint tests, an intermittent problem may be the cause. Always check for loose connections and corroded contacts.
| DTC | Description | Possible reason | Action |
| P008821 | Fuel rail/system pressure too high | Check for DTCs related to the pressure regulator and refer to the appropriate DTC Index | |
| P008822 | Fuel rail/system pressure too high | Check for fuel leaks. Refer to the electrical diagrams and check the electrical circuit of the flow controller for a short circuit to ground or break If necessary install a new high pressure fuel pump | |
| P008824 | Fuel rail/system pressure too high | Check for fuel leaks. Refer to electrical diagrams and check the pressure regulator circuit for a short to ground, short to power, or open circuit. Install a new pressure regulator if necessary | |
| P008827 | Fuel rail/system pressure too high | Check the low and high pressure systems for fuel leaks, check for additional DTCs and refer to the DTC Index | |
| P009B00 | Fuel Pressure Relief Valve Control Circuit/Open | Pressure Regulator Electrical Circuit - Open Load | Perform pinpoint tests for this DTC using the manufacturer approved diagnostic system |
| P009C00 | Fuel Pressure Bypass Valve Control Circuit Low Voltage | Pressure Regulator Control Circuit Short to Ground | Perform pinpoint tests for this DTC using the manufacturer approved diagnostic system |
| P009D00 | Fuel Pressure Relief Valve Control Circuit High | Pressure regulator control circuit - short circuit to power supply | Perform pinpoint tests for this DTC using the manufacturer approved diagnostic system |
| P009E00 | Fuel Pressure Relief Valve Control System Operation/Stuck Off | Overheating of the pressure regulator cascade | Refer to the electrical diagrams and check the pressure regulator for high resistance; if no fault is found, install a new ECM. Refer to the New Module/Component Installation Note at the top of the DTC Index. |
| P031300 | Misfire detected with low fuel level | Low fuel level - misfiring is caused by the electronic control unit as a warning to the driver before switching off | Perform pinpoint tests for this DTC using the manufacturer approved diagnostic system |
| P115A68 | Low Fuel - Forced Power Limit (Information DTC Only) | Low fuel level - second warning after dashboard indicator comes on | Check for additional DTCs and refer to the appropriate DTC Index. |
| P115B68 | Low Fuel - Forced Engine Shutdown (Information DTC Only) | Check the fuel level. Check for additional DTCs and refer to the appropriate DTC Index. | |
| P226600 | Low voltage in fuel sensor circuit | Short circuit to ground of water indicator in fuel filter | Perform pinpoint tests for this DTC using the manufacturer approved diagnostic system |
| P226700 | High voltage in fuel sensor circuit | Short circuit to battery of water in fuel filter indicator | Perform pinpoint tests for this DTC using the manufacturer approved diagnostic system |
| P228800 | Too high pressure in the injector control unit | Check for fuel leaks. Refer to the electrical diagrams and check the electrical circuit of the high-pressure fuel pump for a short-circuit to ground or rupture. Install a new high pressure pump if necessary |
(The original text can be found at: www.lrman.ru)
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