1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Wait for at least 6 seconds.
4. Check for DTCs with the HDS.
Are DTCs B2155, B2156, and/or B2161 indicated?
YES -
Go to step 5.
NO -
Intermittent failure, the system is OK at this time. Check for loose or poor connections between the driver's MPCS unit and the MICU.?
5. Check for DTCs with the HDS.
Are DTCs B1055, B1057, B1157, B1159, B1255, B1355, B1806, B1810, B1811, and/or B1955 also indicated?
YES -
Faulty MICU, replace the under-dash fuse/relay box See: Maintenance/Fuses and Circuit Breakers/Fuse Block/Service and Repair/Under-Dash
Fuse/Relay Box Removal and Installation.?
NO -
Do the driver's MPCS unit input test See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and
Inspection/Component Tests and General Diagnostics/Drivers MPCS Unit Input Test.?
B2162
DTC Troubleshooting: B2162
DTC B2162:
Driver's MPCS Unit Lost Communication with Relay Control Module (RM Message)
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. Wait for at least 6 seconds.
4. Check for DTCs with the HDS.
Is DTC B2162 indicated?
YES -
Go to step 5.
NO -
Intermittent failure, the system is OK at this time. Check for loose or poor connections between the driver's MPCS unit and the relay control
module.?
5. Check for DTCs with the HDS.
Are DTCs B1005, B1158, B1959, and/or B2970 also indicated?
YES -
Do the relay control module input test See: Power and Ground Distribution/Testing and Inspection/Relay Control Module Input Test.?
