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 MANUALSCHRYSLER2013TOWN & COUNTRY S, GASREPAIR AND DIAGNOSISSTEERINGSTEERING CONTROL SYSTEMS(STEERING CONTROL MODULE (SCM) - ELECTRICAL DIAGNOSTICS)DTC TROUBLESHOOTINGU0121-LOST COMMUNICATION WITH ABSDIAGNOSTIC TEST
2013 Chrysler Town & Country S, Gas
Diagnostic Test
2013 Chrysler Town & Country S, GasSECTION Diagnostic Test
- ACTIVE DTC
- Ignition on, engine not running.
- With the scan tool, select view DTCs.
Is the DTC Active at this time?
Yes
- Refer to TOTALLY INTEGRATED POWER MODULE (TIPM) - DIAGNOSTIC CODE INDEX and perform the U0121-LOST COMMUNICATION WITH ANTI-LOCK BRAKE MODULE diagnostic procedure.
No
- Refer to DIAGNOSIS AND TESTING and perform the STORED LOST COMMUNICATION DTCS diagnostic procedure.
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.