T-SB-0111-14

T-SB-01 11 -14
®TOYOTA
Aug ust 27, 2014
Technical Service Bulletin
HVAC - Heater Inoperative
Service
Category
Vehicle Interior
Section
H eating/Air Conditioning
Market
Toyota Supports ~
ASE Certification ~
USA
Applicability
YEAR(S)
MODEL(S)
2012-2014
RAV4 EV
ADDITIONAL INFORMATION
Introduction
Some 2012 - 2014 model year RAV4 EV vehicles may experience a lack of heat from the HVAC
system. An updated PTC heater is available to address this condition.
Production Change Information
T his bulletin applies to vehicles produced BEFORE the Production C hange Effective VIN
shown below.
MODEL
PLANT
PRODUCTION CHANGE EFFECTIVE VI N
RAV4 EV
TMMC
2T3YL4DV#EVV003299
Warranty Information
OP CODE
DESCRIPTI ON
TIME
OFP
T1
T2
AC1401
Heater Sub-Assy, Electric
2.6
87101-42010
72
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-se rvice date.
• Warranty application is limited to occurrence of the specified condition described in
thi s bulletin.
Parts Information
PART NUMBER
PART NAME
QTY
87101-42010
Heater Sub-Assy, Electric
1
G9270-0R01 1
DC/DC Converter Assy
1
© 2014 Toyota Motor Sales, USA
Page 1 of 4
@TOYOTA
T-SB-0111 -14
August 27, 2014
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HVAC - Heater Inoperative
Required Tools & Equipment
REQUIRED MATERIAL
QUANTITY
DVOM*
'Standard DVOM, not mega ohm tester
Repair Procedure
1. Confirm the condition from the Introduction.
2. Remove the service plug.
Refer to the Technical Information System (TIS) , applicable model and model year
Repair Manual:
• 201 2 I 201 3 I 201 4 RAV4 EV:
Engine/Hybrid System - Hybrid/Battery Control System - "Hybrid/Battery
Control: Service Plug Grip: Removal"
3. Disconnect the PTC Cabin Heater con nector.
Figure 1.
1
I
PTC Cabin Heater Connector
4. Inspect the resistance of the Heater Sub-Assembly between pins 1 and 2 using a standard
DVOM (do not use a mega ohm tester) .
© 2014 Toyota Motor Sales, USA
@TOYOTA
T-SB-0111-14
August 27, 2014
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HVAC - Heater Inoperative
Repair Procedure (Continued)
5. Check the Heater Sub-Assembly resistance by
Figure 2.
placi ng the positive lead of the DVOM on terminal .---~-------~-----,
#2 and the negative lead on terminal #1 of the
PTC connector.
NOTE
In correct polarity will give an inaccurate
reading.
1
6. If the resistance is below 500Kn the DC/DC converter will need to be inspected. If the resistance
is NOT below 500Kn th is bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
7. Check the resistance of the DC/DC Converter
between the "+" termina l of the cabin heater and
the "+" terminal of the HV power supply.
Figure 3.
8. If the circuit is open (0/L) then the Heater Sub-Assembly AND the DC/DC Converter need to
be replaced . If the circuit is NOT open (O/L) this bulletin does NOT apply. Continue diagnosis
using the applicable Repair Manual.
Refer to the Technical Information System (TIS) , applicable model and model year
Repair Manual:
• 2012 I 2013 I 2014 RAV4 EV:
Vehicle Interior- Heating/Air Conditioning - "Heating/Air Conditioning: Heater
Assembly: Removal"
© 2014 Toyota Motor Sales, USA
@TOYOTA
August 27, 2014
T-SB-0111-14
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HVAC - Heater Inoperative
Repair Procedure (Continued)
• 2012 I 2013 I 2014 RAV4 EV:
Vehicle Interior - Heating/Air Conditioning - "Heating/Air Conditioning: Heater
Assembly: Installation "
• 2012 I 2013 I 2014 RAV4 EV:
Engine/Hybrid System - Hybrid/Battery Control System - "Hybrid/Battery
Control: DC-DC Converter: Removal"
• 2012
2013
2014
-I-I - RAV4 EV:
Engine/Hybrid System - Hybrid/Battery Control System - "Hybrid/Battery
Control: DC-DC Converter: Installation"
9. Verify the vehicle operates normally.
© 2014 Toyota Motor Sales, USA