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 MANUALSCHRYSLER2013TOWN & COUNTRY S, GASREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 199 ((DRIVETRAIN CONTROL MODULE (DTCM) - ELECTRICAL DIAGNOSTICS))DTC TROUBLESHOOTINGU0121-00-LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULEDIAGNOSTIC TEST
2013 Chrysler Town & Country S, Gas
Diagnostic Test
2013 Chrysler Town & Country S, GasSECTION Diagnostic Test
WARNING: This page is about a different car, the 2013 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
- VERIFY THE DTC IS ACTIVE NOTE:
Make sure the IOD fuse is installed and the battery is fully charged before proceeding.
- Turn the ignition on.
- With the scan tool, read active DTCs.
Is the DTC active at this time?
Yes
- Refer to the DTC INDEX and perform the U0121-00-Lost Communication with Anti-lock Brake System (ABS) Control Module diagnostic procedure.
No
- Refer to DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.
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.