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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHRYSLER2003300M BASEREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SELF-DIAGNOSTICSDIAGNOSTIC TESTSDTC P1602: PCM NOT PROGRAMMEDTESTING
2003 Chrysler 300M Base
DTC P1602: Pcm Not Programmed: Testing
2003 Chrysler 300M BaseSECTION Testing
- Ignition on, engine not running. With the DRBIII® scan tool, erase DTCs. With the DRBIII® scan tool program the PCM. Start the engine. Allow the engine to reach normal operating temperature. With the DRBIII® scan tool, read DTCs. Does the DTC reset? If yes, go to next step. If no, the PCM has been successfully programmed. Test is complete.
- The ignition switch must be left in the off position for a minimum of 10 seconds. Cycle the ignition switch to the off position and then back to run. Attempt to program the PCM. Start the vehicle and allow it to reach normal operating temperatures. With the DRBIII® scan tool, read DTCs. Does the DTC reset? If yes, replace and program the PCM. See PROGRAMMING . If no, the PCM has been successfully programmed into the PCM. Test is complete.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.