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 MANUALSDODGE AND RAM2023PROMASTER 3500 2D CAB CHASSISREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSIS3.6L - DTCS U0404 TO U140ADTC TROUBLESHOOTINGU0426-INVALID DATA RECEIVED FROM VEHICLE IMMOBILIZER CONTROL MODULEWHEN MONITORED
2023 Dodge and Ram ProMaster 3500 2D Cab Chassis
When Monitored
2023 Dodge and Ram ProMaster 3500 2D Cab ChassisSECTION When Monitored
This diagnostic runs when the following conditions are met
- With the ignition is on.
- The battery voltage between 10 and 16 volts.
- The Body Control Module (BCM) is configured correctly.
Set Conditions:
- When the Body Control Module (BCM) does not receive the security code (Minikrypt) from the Powertrain Control Module (PCM).
RENDER: 1.0x
NO RELATED
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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.