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.
2002 Chevrolet Venture PlusFACTORY OEM SERVICE PROCEDURE
DTC U2153: Navigation Module Internal Failure: Testing
WARNING: This page is about a different car, the 2001 Cadillac Seville. However, it is still accessible from the selected car via links, so may be relevant.
- If navigation system diagnostic system check has been performed, go to next step. If navigation system diagnostic system check has not been performed, perform NAVIGATION SYSTEM DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM.
- Turn ignition switch to OFF position. Remove Navigation Module (NAV). Inspect installation of dealer installed VICS circuit board. Install NAV. Using scan tool, clear DTCs. Turn ignition switch to RUN position. Using scan tool, retrieve DTCs. If DTC resets, go to next step. If DTC does not reset, go to step 4 .
- Replace NAV, then go to next step.
- Using scan tool, clear DTCs. Operate vehicle within code enable criteria. If DTC resets, repeat test beginning at step 2 .
NOTE:
Ensure that dealer installed VICS board is installed into replacement NAV.
Factory Service Tools
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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.