T-SB-0069-22 Rev

T-SB-0069-22
Rev1
August 15, 2022
Electronic Power Steering (EPS) Light ON With DTC
C05D604 and/or C15D704
Service
Category
Vehicle Interior
Section
Meter/Gauge/Display
Market USA
Applicability
YEAR(S)
MODEL(S)
2022
Tundra, Tundra HV
ADDITIONAL INFORMATION
REVISION NOTICE
December 07, 2022 Rev1:
 Applicability has been updated to include 2022 model year Tundra Hybrid vehicles.
 The Production Change Information section and Parts Information sections have been included.
 The Introduction section has been updated.
Any previous printed versions of this bulletin should be discarded.
Introduction
Some 2022 model year Tundra, Tundra Hybrid, and Tundra Hybrid TRD Pro vehicles may exhibit
a red or yellow Electronic Power Steering (EPS) light ON condition with Diagnostic Trouble Code
(DTC) C05D604 and/or C15D704 present when starting the vehicle. The EPS logic in the EPS
gear assembly ECU has been modified to reduce the possibility of this condition. Follow the
Repair Procedure in this bulletin to address this condition.
© 2022 Toyota Motor Sales, USA
Page 1 of 5
T-SB-0069-22
Rev1
August 15, 2022
Page 2 of 5
Electronic Power Steering (EPS) Light ON With DTC C05D604 and/or C15D704
Production Change Information
This bulletin applies to vehicles produced BEFORE the Production Change Effective VINs
shown below.
MODEL
PLANT
DRIVETRAIN
PRODUCTION CHANGE EFFECTIVE VIN
5TFJA5AA#NX13055
5TFLA5AA#NX13055
5TFKB5AA#NX13055
5TFJA5AB#NX13055
5TFKB5AB#NX13055
5TFLA5AB#NX13055
2WD
5TFMA5AB#NX13055
5TFNA5AB#NX13055
5TFJA5BC#NX2028
5TFLA5BC#NX2028
5TFMA5BC#NX2028
5TFNA5BC#NX2028
5TFLA5CD#NX1311
Tundra
5TFKB5CD#NX1311
TMMTX
5TFJA5DA#NX40890
5TFLA5DA#NX40890
5TFKB5DA#NX40890
5TFJA5DB#NX40890
5TFKB5DB#NX40890
5TFLA5DB#NX40890
4WD
5TFMA5DB#NX40890
5TFNA5DB#NX40890
5TFJA5EC#NX8380
5TFLA5EC#NX8380
5TFNA5EC#NX8380
5TFMA5EC#NX8380
5TFKB5GD#NX1671
5TFLA5GD#NX1671
© 2022 Toyota Motor Sales, USA
T-SB-0069-22
Rev1
August 15, 2022
Page 3 of 5
Electronic Power Steering (EPS) Light ON With DTC C05D604 and/or C15D704
Production Change Information (continued)
MODEL
PLANT
DRIVETRAIN
PRODUCTION CHANGE EFFECTIVE VIN
5TFJC5AB#NX1128
5TFNC5AB#NX1128
5TFMC5AB#NX1128
2WD
5TFJC5BC#NX1035
5TFMC5BC#NX1035
5TFNC5BC#NX1035
Tundra HV
5TFJC5DB#NX10937
TMMTX
5TFPC5DB#NX10937
5TFVC5DB#NX10937
5TFNC5DB#NX10937
4WD
5TFMC5DB#NX10937
5TFJC5EC#NX1262
5TFNC5EC#NX1262
5TFMC5EC#NX1262
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
EL9071
Reprogram the EPS Gear Assembly
0.5
44250-#####*
8C
99
*Warranty claim MUST be submitted with the correct 10-digit OFP. Choose the correct OFP for the vehicle
being repaired by searching for the parts in the Electronic Parts Catalog using the VIN filter.
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.
© 2022 Toyota Motor Sales, USA
T-SB-0069-22
Rev1
August 15, 2022
Page 4 of 5
Electronic Power Steering (EPS) Light ON With DTC C05D604 and/or C15D704
Parts Information
PART NUMBER
PART NAME
QTY
44250-0C180
44250-0C190
Gear Assy, Power Steering
–
NOTE
The EPS ECU should NOT be replaced as part of the Repair Procedure.
Required Tools & Equipment
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
Battery Diagnostic Tool*
DCA-8000P T
1
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.
REQUIRED EQUIPMENT
SUPPLIER
Techstream ADVI*
PART NUMBER
QTY
TSADVUNIT
Techstream 2.0
TS2UNIT
ADE
1
Techstream Lite
TSLITEPDLR01
Techstream Lite (Green Cable)
TSLP2DLR01
*Essential SST.
NOTE
 Only ONE of the Techstream units listed above is required.
 Software version 17.20.013 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
© 2022 Toyota Motor Sales, USA
T-SB-0069-22
Rev1
August 15, 2022
Page 5 of 5
Electronic Power Steering (EPS) Light ON With DTC C05D604 and/or C15D704
Calibration Information
CALIBRATION ID
MODEL
ENGINE
Tundra, Tundra HV
PREVIOUS
NEW
8965F3401100/
8965F3402100
8965F3401200/
8965F3402200
8965F3403100/
8965F3404100
8965F3403200/
8965F3404200
V35A-FTS
Tundra HV TRD Pro
Repair Procedure
1. Confirm the condition exists.
Does the vehicle exhibit a red or yellow EPS light ON with DTC C05D604 and/or C15D704
present when starting the vehicle?

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.
NOTE
 The battery diagnostic tool MUST be used in Power Supply Mode to maintain battery voltage at
13.5V while flash reprogramming the vehicle.
 For details on how to use the battery diagnostic tool, refer to the DCA-8000 Instruction Manual
located at TIS – Diagnostics – Tools & Equipment – Battery Diagnostics.
Follow the procedures outlined in T-SB-0134-16, Techstream ECU Flash Reprogramming
Procedure, and flash the EPS ECU with the NEW calibration file update.
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.
© 2022 Toyota Motor Sales, USA