Is there continuity?
YES -
Repair a short to ground in the wire.?
NO -
Go to step 25.
25. Turn the ignition switch to ON (II).
26. Measure the voltage between driver's MPCS unit connector A (40P) terminal No. 8 and body ground.
Is there voltage?
YES -
Repair a short to power in the wire.?
NO -
Replace the driver's MPCS unit.?
B2188
DTC Troubleshooting: B2188
DTC B2188:
UART Communication Error 2 (Driver's MPCS Unit from other node)
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A See: Powertrain
Management/Computers and Control Systems/Information Bus/Testing and Inspection/Component Tests and General Diagnostics/Troubleshooting
- B-CAN System Diagnosis Test Mode A.
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Open and close the driver's and front passenger's power windows by using the power window master switch manually.
4. Check for DTCs with the HDS.
Is DTC B2188 indicated?
