TPMS Control Unit
TPMS DTC Troubleshooting: 81
DTC 81:
TPMS Control Unit Failure (RAM/ROM/ADC/EEPROM/ALU) Check
NOTE: Low battery voltage can cause this DTC. Make sure the battery is fully charged and in good condition.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn the ignition switch to ON (II) again.
4. Check for DTCs with the HDS.
Is DTC 81 indicated?
YES -
Replace the TPMS control unit Service and Repair.
NO -
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.