Please see T-SB-0061-20
2019-2020 Toyota RAV4 and RAV4 Hybrid
WMI(s): 2T3, 4T3
(Please see this Post to determine VDS and WMI's)
Introduction:
Some 2019 – 2020 model year RAV4 or RAV4 Hybrid vehicles may experience a red or yellow Electronic Power Steering (EPS) light ON condition with Diagnostic Trouble Code (DTC) C05D604 ( Power Steering Control Module Processor System Internal Failure ) present when starting the vehicle or while driving. The EPS logic in the EPS gear assembly ECU has been modified to reduce the possibility of this condition. Follow the Repair Procedure in bulletin T-SB-0061-20 to address this condition by installing a calibration software update.
APPLICABLE WARRANTY:
This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle’s in-service date.
Warranty application is limited to occurrence of the specified condition described in this bulletin.
Repair Procedure:
1. Confirm the condition exists. Does the vehicle exhibit a red or yellow EPS light ON with DTC C05D604 present?
YES — Continue to step 2.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual
2. Using Techstream, perform a Health Check to confirm if the EPS ECU calibration is up-to-date. Is the Calibration ID listed the latest EPS ECU calibration?
YES — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
NO — Continue to step 3.
3. Flash reprogram the EPS ECU.
4. AFTER the flash reprogramming is complete, clear ANY DTCs that may be present.
5. Test-drive the vehicle to ensure the condition no longer exists.
2019-2020 Toyota RAV4 and RAV4 Hybrid
WMI(s): 2T3, 4T3
(Please see this Post to determine VDS and WMI's)
Introduction:
Some 2019 – 2020 model year RAV4 or RAV4 Hybrid vehicles may experience a red or yellow Electronic Power Steering (EPS) light ON condition with Diagnostic Trouble Code (DTC) C05D604 ( Power Steering Control Module Processor System Internal Failure ) present when starting the vehicle or while driving. The EPS logic in the EPS gear assembly ECU has been modified to reduce the possibility of this condition. Follow the Repair Procedure in bulletin T-SB-0061-20 to address this condition by installing a calibration software update.
APPLICABLE WARRANTY:
This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle’s in-service date.
Warranty application is limited to occurrence of the specified condition described in this bulletin.
Repair Procedure:
1. Confirm the condition exists. Does the vehicle exhibit a red or yellow EPS light ON with DTC C05D604 present?
YES — Continue to step 2.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual
2. Using Techstream, perform a Health Check to confirm if the EPS ECU calibration is up-to-date. Is the Calibration ID listed the latest EPS ECU calibration?
YES — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
NO — Continue to step 3.
3. Flash reprogram the EPS ECU.
4. AFTER the flash reprogramming is complete, clear ANY DTCs that may be present.
5. Test-drive the vehicle to ensure the condition no longer exists.