T-SB-0023-20

MIL ON With DTC(s) P1C5F19 and/or P1C5D19 Causing
Over-current Condition
Service
Category
Vehicle Interior
Section
Meter/Gauge/Display
Market USA
Applicability
YEAR(S)
MODEL(S)
2019 - 2020
Avalon HV, Camry HV,
RAV4 HV
ADDITIONAL INFORMATION
Introduction
Some 2019 – 2020 model year Avalon Hybrid, Camry Hybrid, and RAV4 Hybrid vehicles may
exhibit a MIL ON condition with a “Hybrid System Malfunction” message displayed and one or
more of the following DTC(s) that represent an over current between the MG1, MG2, and
inverter/PCU:

P1C5D19 – Drive Motor "A" Inverter Circuit Current Above Threshold

P1C5F19 – Generator Inverter Circuit Current Above Threshold
These conditions typically occur on low vehicle mileage (less than 5,000). After an occurrence,
the vehicle will be able to run normally with no drivability issues. Follow the Repair Procedure in
this bulletin to address these conditions.
Figure 1. View of Terminals at the Inverter
Figure 2. Close-Up View of Terminal
1
1
0
1
Close-Up View of Terminal (See Figure 2)
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1
Debris Created From Bolt Tightening
© 2020 Toyota Motor Sales, USA
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MIL ON With DTC(s) P1C5F19 and/or P1C5D19 Causing Over-current Condition
Production Change Information
This bulletin applies to vehicles produced BEFORE the Production Change Effective VINs
shown below.
MODEL
PLANT
PRODUCTION CHANGE EFFECTIVE VIN
TMMK #1
4T1C31AK#LU011609
4T1E31AK#LU011609
4T1L31AK#LU011609
4T1G31AK#LU011609
4T1J31AK#LU011609
4T1M31AK#LU011609
4T1P31AK#LU011609
4T1F31AK#LU011609
TMMK #2
4T1C31AK#LU525895
4T1E31AK#LU525895
4T1L31AK#LU525895
4T1G31AK#LU525895
4T1J31AK#LU525895
4T1M31AK#LU525895
4T1P31AK#LU525895
4T1F31AK#LU525895
TICO #1
JTMLWRFV#LD053757
JTMEWRFV#LD053757
JTMRWRFV#LD053757
JTMDWRFV#LD053757
TICO #2
JTMLWRFV#LD533946
JTMEWRFV#LD533946
JTMRWRFV#LD533946
JTMDWRFV#LD533946
TAKAOKA
JTMLWRFV#LJ038694
JTMEWRFV#LJ038694
JTMRWRFV#LJ038694
JTMDWRFV#LJ038694
TMMC
2T3LWRFV3#W070728
2T3RWRFV3#W070728
2T3DWRFV3#W070728
TMMK
4T3LWRFV3#U001123
4T3RWRFV3#U001123
4T3DWRFV3#U001123
4T3EWRFV3#U001123
Camry HV
RAV4 HV
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© 2020 Toyota Motor Sales, USA
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MIL ON With DTC(s) P1C5F19 and/or P1C5D19 Causing Over-current Condition
Production Change Information (continued)
MODEL
Avalon HV
PLANT
PRODUCTION CHANGE EFFECTIVE VIN
TMMK
4T1B21FB7#U015903
4T1A21FB7#U015903
4T1J21FB7#U015903
4T1E21FB7#U015903
4T1C21FB7#U015903
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
EL1928
R & R Bolts for Motor Cable
2.0
91671-80612
90119-A0182
8A
73
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.
Parts Information
MODEL
PART NUMBER
PREVIOUS
NEW
Avalon HV
91671-80612
90119-A0182
90119-06A57
RAV4 HV
91671-80612
Camry HV
All
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82823-47040
© 2020 Toyota Motor Sales, USA
PART NAME
QTY
Bolt, With Washer
8
Cap, Terminal
1
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MIL ON With DTC(s) P1C5F19 and/or P1C5D19 Causing Over-current Condition
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
Techstream ADVi*
QTY
TSADVUNIT
Techstream 2.0
Techstream Lite
PART NUMBER
TS2UNIT
ADE
Techstream Lite (Green Cable)
TSLITEPDLR01
1
TSLP2DLR01
*Essential SST.
NOTE
 Only ONE of the Techstream units listed above is required.
 Software version 14.30.022 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
Repair Procedure
1. Run a Health Check to confirm the condition exists.
Does the vehicle exhibit a MIL ON condition with a “Hybrid System Malfunction” message
displayed and DTC(s) P1C5D19 and/or DTC P1C5F19 present?

YES — Continue to step 2.

NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
NOTE
This condition is for DTC(s) P1C5D19 and P1C5F19. If other Hybrid DTC codes exist, this bulletin
may NOT be applicable. Continue diagnosis using the applicable Repair Manual.
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MIL ON With DTC(s) P1C5F19 and/or P1C5D19 Causing Over-current Condition
Repair Procedure (continued)
2. Remove the MG cable.
NOTE
The bolts from the inverter may be reused.
Refer to TIS, applicable model and model year Repair Manual:

2019 / 2020 Avalon HV:
Drivetrain – Hybrid Transmission/Transaxle – “P710 (Hybrid Transmission / Transaxle):
Motor Cable: Removal”

2019 / 2020 Camry HV:
Drivetrain – Hybrid Transmission/Transaxle – “P710 (Hybrid Transmission / Transaxle):
Motor Cable: Removal”

2019 / 2020 RAV4 HV:
Drivetrain – Hybrid Transmission/Transaxle – “P710 (Hybrid Transmission / Transaxle):
Motor Cable: Removal”
3. Using compressed air, blow out ALL potential debris on the terminals and connections area of
the inverter and transaxle. Visually confirm there is no debris present on terminals and
connections area.
4. Reinstall the MG cable with NEW bolts into the transaxle assembly. Inverter bolts can be
reused. Refer to TIS, applicable model and model year Repair Manual:

2019 / 2020 Avalon HV:
Drivetrain – Hybrid Transmission/Transaxle – “P710 (Hybrid Transmission / Transaxle):
Motor Cable: Installation”

2019 / 2020 Camry HV:
Drivetrain – Hybrid Transmission/Transaxle – “P710 (Hybrid Transmission / Transaxle):
Motor Cable: Installation”

2019 / 2020 RAV4 HV:
Drivetrain – Hybrid Transmission/Transaxle – “P710 (Hybrid Transmission / Transaxle):
Motor Cable: Installation”
NOTE
Ensure correct fastening tools and torque are used when installing the MG cable. Over tightening
can create debris.
5. Clear codes and test-drive the vehicle to ensure the conditions no longer exists.
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© 2020 Toyota Motor Sales, USA