NOTE: If a control 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 a 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 |
| P056200 | Low voltage in the system | Battery voltage below lower limit | Perform the appropriate pinpoint test for this DTC using the manufacturer approved diagnostic system. |
| P056300 | High voltage in the system | Battery voltage is above upper limit | Perform the pinpoint test associated with this DTC using the manufacturer approved diagnostic system. Check the integrity of the charging system. For additional information, refer to: Generator (414-02 Generator and Voltage Regulator, Diagnostics and Testing). |
| P062000 | Generator control electrical circuit | Lost connection with generator | Refer to the electrical diagrams and check the LIN circuit from the generator to the ECM |
| P063A00 | Generator voltage sensing circuit | Electrical fault in generator | Refer to the electrical diagrams and check the positive connection of the battery to the alternator. Check the integrity of the drive pulley and belt. Check the battery voltage in KOEO and KOER mode, if the voltage does not increase with the engine running, install a new alternator |
| P065A00 | Generator system characteristics | Generator regulator overheating | Refer to the electrical diagrams and check the positive battery connection to the alternator. Check the alternator regulator housing. Check the drive pulley and belt for integrity. Check for additional DTCs and refer to the appropriate DTC Index. Check the battery voltage in KOEO and KOER mode, if the voltage does not increase with the engine running, install a new alternator |
| P065B00 | Generator Control Circuit Range/Characteristics | Refer to electrical diagrams and check the LIN circuit from the ECM to the alternator. Check/install a new alternator if necessary | |
| P065C00 | Mechanical characteristics of the generator | Mechanical failure of the generator | Refer to the electrical diagrams and check the positive connection of the battery to the alternator. Check the integrity of the drive pulley and belt. Check the battery voltage in KOEO and KOER mode, if the voltage does not increase with the engine running, install a new alternator |
(Details can be found on the website www.LRman.ru)
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