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.
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HOMESERVICE MANUALSCHRYSLER2003300M V6-3.5L VIN MREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINTRANSMISSION CONTROL SYSTEMSRELAYS AND MODULES - TRANSMISSION AND DRIVETRAINRELAYS AND MODULES - A/TCONTROL MODULETESTING AND INSPECTIONPINION FACTOR SETTING
2003 Chrysler 300M V6-3.5L VIN M
Pinion Factor Setting
2003 Chrysler 300M V6-3.5L VIN MSECTION Pinion Factor Setting
STANDARD PROCEDURE - PINION FACTOR PROCEDURE
The vehicle speed readings for the speedometer are taken from the output speed sensor. The PCM must be calibrated to the different combinations of equipment available. Pinion Factor allows the technician to set the Powertrain Control Module initial setting so that the speedometer readings will be correct.
This procedure must be performed if the Powertrain Control Module has been replaced. Failure to perform this procedure will result in an inoperative speedometer.
To properly read or reset the Pinion Factor it is necessary to use a DRB scan tool. Perform the following steps with the DRB scan tool to read or reset the Pinion Factor:
1. Plug the DRB scan tool into the data link connector located under the instrument panel.
2. Select the Transmission menu.
3. Select the Miscellaneous menu.
4. Select Pinion Factor. Then follow the instructions on the DRB scan tool screen.
The vehicle speed readings for the speedometer are taken from the output speed sensor. The PCM must be calibrated to the different combinations of equipment available. Pinion Factor allows the technician to set the Powertrain Control Module initial setting so that the speedometer readings will be correct.
This procedure must be performed if the Powertrain Control Module has been replaced. Failure to perform this procedure will result in an inoperative speedometer.
To properly read or reset the Pinion Factor it is necessary to use a DRB scan tool. Perform the following steps with the DRB scan tool to read or reset the Pinion Factor:
1. Plug the DRB scan tool into the data link connector located under the instrument panel.
2. Select the Transmission menu.
3. Select the Miscellaneous menu.
4. Select Pinion Factor. Then follow the instructions on the DRB scan tool screen.
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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.