DTC 85
DTC 85: CAN Data ErrorNOTE: If DTC U0073 is stored at the same time as DTC 85, troubleshoot those DTCs first, then recheck for DTC 85.
1. Clear the DTC with the HDS.
2. Turn the ignition switch ON (II).
Is DTC 85 indicated?
YES - Go to step 3.
NO - The system is OK at this time.
3. Test-drive the vehicle.
Does the speedometer work?
YES - Go to step 5.
NO - Go to step 4.
4. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.
Are any Temporary DTCs or DTCs indicated?
YES - If DTC U0073 is indicated, check for poor connections or loose terminals at the TPMS control unit and the PCM, then go to the indicated DTC troubleshooting.
NO - Replace the PCM.
5. Turn the ignition switch OFF.
6. Short the SCS line with the HDS.
7. Disconnect PCM connector A (44P).
8. Disconnect TPMS control unit connector B (20P).
9. Check for continuity between TPMS control unit connector B (20P) terminals and PCM connector A (44P) terminals individually (see table).
Is there continuity?
YES - Check for loose terminals and poor connections at the TPMS control unit. If necessary, substitute a known-good TPMS control unit and recheck.
NO - Repair open in the appropriate wire between TPMS control unit and PCM.