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Jeep TSB #21-005-13
2012 Jeep Grand Cherokee
TSB Document:
Affected Component: EQUIPMENT ADAPTIVE/MOBILITY
- Summary
- FLASH: MIL Illumination For P0730 - Incorrect Gear Ratio This bulletin involves updating the Transmission Control Module (TCM) software. Customers may indicate that the MIL is illuminated and/or the transmission went into limp-in. Upon further investigation, Diagnostic Trouble Code (DTC) P0730 - Incorrect Gear Ratio is either active or stored in the PCM?s memory.
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