DTC B1829: A/T P Signal and VSS Signal Mismatch

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Clear the DTCs with the HDS.
Start the engine.
Test drive at 6 mph (10 km/h) for at least 10 seconds.
Check for DTCs with the HDS.
Is DTC B1829 indicated?

YES -Go to step 5.

NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections at the power seat control unit connector.
Check the P indicator of the A/T gear position indicator and the MIL.
Does the P indicator and MIL come on?

YES -Troubleshoot the automatic transmission system.

NO -Go to step 6.
Check for gauge control module DTCs with the HDS.
Are any DTCs indicated?

YES -Troubleshoot the gauge control module.

NO -Replace the power seat control unit.