NOTE: If a module is suspected and the vehicle is still under manufacturer warranty, refer to the warranty manual (subsection B1.2) or determine if there is any previously approved special program in effect before installing a new module.
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 |
| P044100 | Fuel Evaporative Recovery System - Incorrect Purge Flow Rate | Check the condition and installation of the fuel vapor recovery system. Check the operation of the purge valve. Install new components if necessary | |
| P044200 | Leak detected in fuel vapor recovery system (minor leak) | The Dynamic Tank Leak Monitoring (DMTL) system has detected a small leak in the evaporative emission system | Perform a fuel system integrity check using local equipment (Vacutec/K-Line etc.). Repair if necessary |
| P044400 | Open circuit of the fuel vapor recovery system purge control valve | Check the purge valve and electrical circuits. Refer to the electrical manual. Install a new valve if necessary | |
| P044700 | Open circuit in the electrical control circuit of the ventilation of the fuel vapor recovery system | Check the COV and electrical circuits. Refer to the electrical manual. Install a new valve if necessary (the multi-port valve is built into the leak control pump in the fuel tank) | |
| P044800 | Short circuit in the fuel vapor recovery system ventilation control circuit | Check the COV and electrical circuits. Refer to the electrical manual. Install a new valve if necessary (the multi-port valve is built into the leak control pump in the fuel tank) | |
| P045500 | Evaporative Emission System Leak Detected (Large Leak/No Flow) | Check the condition and installation of the fuel filler cap. Perform a fuel system integrity check using local equipment (Vacutec/K-Line, etc.). Repair if necessary | |
| P045800 | Low Voltage in Evaporative Emission Control Valve Circuit | Check the purge valve and electrical circuits. Refer to the electrical manual. Install a new valve if necessary | |
| P045900 | High Voltage in Evaporative Emission Control Valve Circuit | Check the purge valve and electrical circuits. Refer to the electrical manual. Install a new valve if necessary | |
| P240100 | Low voltage in the fuel vapor recovery system leak control pump control circuit | Check the fuel tank leakage control pump and electrical circuits. Refer to the electrical manual. Install a new pump if necessary | |
| P240200 | High Voltage in Fuel Evaporative Emission System Leak Detection Pump Control Circuit | Check the fuel tank leakage control pump and electrical circuits. Refer to the electrical manual. Install a new pump if necessary | |
| P240500 | Low Voltage in Fuel Evaporative Emission System Leak Detection Pump Sensing Circuit | Check the fuel tank leakage control pump and electrical circuits. Refer to the electrical manual. Install a new pump if necessary | |
| P240600 | High Voltage in Fuel Evaporative Emission System Leak Detection Pump Sensing Circuit | Check the fuel tank leakage control pump and electrical circuits. Refer to the electrical manual. Install a new pump if necessary | |
| P240800 | Fuel filler cap sensor/switch circuit | Perform a full DTC read. Repair as necessary. If this unit is suspected, refer to the Warranty Policy and Procedures manual | |
| P240B00 | Low voltage in the heating element circuit of the leak control pump in the fuel vapor recovery system | Check the fuel tank leakage control pump and electrical circuits. Refer to the electrical manual. Install a new pump if necessary | |
| P240C00 | High voltage in the heating element circuit of the leak control pump in the fuel vapor recovery system | Check the fuel tank leakage control pump and electrical circuits. Refer to the electrical manual. Install a new pump if necessary | |
| P245000 | Performance issues/vaporative emission system multi-way valve stuck open | Check COV and electrical circuits. Refer to electrical manual. Repair if necessary. Install new COV if necessary (COV is built into fuel tank leakage control pump) | |
| P245100 | Fuel vapor recovery system multi-way valve stuck in closed position | Check COV and electrical circuits. Refer to electrical manual. Repair if necessary. Install new COV if necessary (COV is built into fuel tank leakage control pump) |
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