DTC Troubleshooting: B1062, B1063
DTC B1062:
Relay Control Module Lost Communication with Combination Switch Control Unit (HLSW Message)
DTC B1063:
Relay Control Module Lost Communication with Combination Switch Control Unit (WIPSW 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 B1062 and/or B1063 indicated?
YES -
Go to step 5.
NO -
Intermittent failure, the system is OK at this time. Check for loose or poor connections between the relay control module and the combination
switch control unit.?
5. Check for DTCs with the HDS.
Are DTCs B1007, B1062, B1063, B1155, B1156, B1957, B1958, and B2969 all indicated?
YES -
Do the combination switch control unit input test See: Wiper and Washer Systems/Testing and Inspection/Wiper/Washer Switch (Combination
Switch Control Unit) Input Test.?
NO -
Do the relay control module input test See: Power and Ground Distribution/Testing and Inspection/Relay Control Module Input Test.?
B1063
DTC Troubleshooting: B1062, B1063
DTC B1062:
Relay Control Module Lost Communication with Combination Switch Control Unit (HLSW Message)
DTC B1063:
Relay Control Module Lost Communication with Combination Switch Control Unit (WIPSW 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 B1062 and/or B1063 indicated?
