T-SB-0021-21

Rev1

April 13, 2021

DTC P1CE931 - No Signal From the Charging Fan
Service
Category

Engine/Hybrid System

Section

Outline-Engine/Hybrid System

Market USA

Applicability
YEAR(S)

MODEL(S)

2021

RAV4 Prime

ADDITIONAL INFORMATION

REVISION NOTICE
December 23, 2021 Rev1:
 The Warranty Information and Parts Information sections have been updated.
Any previous printed versions of this bulletin should be discarded.

Introduction

Some 2021 model year RAV4 Prime vehicles may store Diagnostic Trouble Code (DTC)
P1CE931 (Charger Cooler Fan Revolution Sensor No Signal). Some vehicles may also exhibit a
longer charging period or reduced charging efficiency. The charger assembly plug-in logic has
been modified to reduce the possibility of these conditions. Follow the Repair Procedure in this
bulletin to address these conditions.

Production Change Information

This bulletin applies to vehicles produced BEFORE the Production Change Effective VIN
shown below.
MODEL

PLANT

DRIVETRAIN

PRODUCTION CHANGE EFFECTIVE VIN

RAV4 Prime

Nagakusa (TICO)

AWD

JTM#B3FV#MD016136

© 2021 Toyota Motor Sales, USA

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T-SB-0021-21

Rev1

April 13, 2021

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DTC P1CE931 - No Signal From the Charging Fan
Warranty Information
OP CODE

DESCRIPTION

TIME

OFP

T1

T2

EL9062

Reprogram Charger Assy Plug-in

0.7

G9099-#####*

8B

74

*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 Powertrain Warranty. This warranty is in effect for
60 months or 60,000 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.
 For 2021 model year RAV4 Prime vehicles that are registered and normally operated in
California, Arizona (2012 model year only), Connecticut (starting with 2005 model year), Maine
(starting with 2004 model year), Maryland (starting with 2011 model year), Massachusetts
(starting with 2004 model year), New Hampshire (2005 – 2009 model year only), New Jersey
(starting with 2005 model year), New Mexico (2010 – 2011 model year only), New York
(beginning with 2004 model year with ZE models only; all models starting with 2016 model
year), Oregon (starting with 2008 model year), Rhode Island (starting with 2005 model year),
and Vermont (starting with 2004 model year) – Partial Zero Emission Vehicle (PZEV) Emission
Warranty Coverage is in effect for 15 years or 150,000 miles, from the vehicle’s in-service
date, whichever occurs first. (Please reference Warranty Policy Bulletin POL14-09 for
additional information.)
 For Delaware (beginning with 2014 model year), Pennsylvania (beginning with 2008 model
year), and Washington (beginning with 2009 model year) California Long-term Emissions
Warranty Coverage for 2021 model year RAV4 Prime vehicles is 84 months 70,000 miles from
the vehicle’s in-service date, whichever occurs first.

Parts Information
PART NUMBER

PART NAME

QTY

G9099-#####

Plug-in, Charger Assy

–

00451-00001-LBL

Authorized Modifications Labels

1

NOTE
 The charger assembly plug-in should NOT be replaced as part of the Repair Procedure.
 Authorized Modifications Labels may be ordered in packages of 25 from the Materials
Distribution Center (MDC) through Dealer Daily – Parts – Dealer Support Materials Orders.

© 2021 Toyota Motor Sales, USA

T-SB-0021-21

Rev1

April 13, 2021

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DTC P1CE931 - No Signal From the Charging Fan
Required Tools & Equipment
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 16.30.011 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
 Use Techstream or an approved J2534 interface to perform flash reprogramming updates.
Visit techinfo.toyota.com for more information regarding J2534 reprogramming.

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.

© 2021 Toyota Motor Sales, USA

T-SB-0021-21

Rev1

April 13, 2021

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DTC P1CE931 - No Signal From the Charging Fan
Calibration Information
CALIBRATION ID
MODEL

RAV4 Prime

ENGINE
PREVIOUS

NEW

G911F4201005

G911F4201105

G911F4201006

G911F4201106

G911F4202007

G911F4202107

G911F4202008

G911F4202108

A25A

Repair Procedure

1. Confirm the condition exists.
Using Techstream, perform Health Check to confirm DTC P1CE931
(Charger Cooler Fan Revolution Sensor No Signal) is present.
Is DTC P1CE931 present?


YES — Continue to step 2.



NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.

© 2021 Toyota Motor Sales, USA

T-SB-0021-21

Rev1

April 13, 2021

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DTC P1CE931 - No Signal From the Charging Fan
Repair Procedure (continued)

2. Use Techstream to confirm if the charger assembly plug-in calibration has been updated
and check for the Authorized Modifications Label affixed to the vehicle in the location
shown below.
Is the calibration ID listed in Techstream and on the label the latest charger assembly
plug-in calibration?


YES — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.



NO — Continue to step 3.

Figure 1. Location of Authorized Modifications Label on 2021 RAV4 Prime

TOYOTA MOTOR CORPORATION
AUTHORIZED MODIFICATIONS
THE FOLLOWING MODIFICATIONS HAVE BEEN MADE:
1
2

THESE MODIFICATIONS HAVE BEEN APPROVED
AS APPROPRIATE BY EPA AND CARB
3

DEALER CODE:
CHANGE AUTHORITY:

4

DATE:

5

1

Replacement ECM (PCM) Part Number
e.g., G9099-#####

4

Date Completed

2

New Calibration ID e.g., G911F4201105

5

This SB Number

3

Dealer Code

© 2021 Toyota Motor Sales, USA

T-SB-0021-21

Rev1

April 13, 2021

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DTC P1CE931 - No Signal From the Charging Fan
Repair Procedure (continued)

3. Flash reprogram the charger assembly plug-in.
NOTE
 The battery diagnostic tool MUST be used in Power Supply Mode to maintain battery voltage
at 13.0 – 13.5V while flash reprogramming the charger assembly plug-in.
 For details on how to use the battery diagnostic station, refer to the DCA-8000 Instruction Manual
located at TIS – Diagnostics – Tools & Equipment – Battery Diagnostics.

Follow the procedures outlined in T-SB-0107-20, Techstream ECU Flash Reprogramming
Procedure, and flash the charger assembly plug-in with the NEW calibration file update.

4. Prepare and install the Authorized Modifications Label.
A. Using a permanent marker, enter the following information on the label:


ECM (PCM) part number [Refer to the Parts Information section for the NEW
PART NUMBER].



Calibration ID(s) [Refer to the Calibration Information section for the
NEW CALIBRATION ID].
Dealer Code.
Repair Date.
Change Authority [This bulletin number].





B. Install the Authorized Modifications Label onto the vehicle at the location shown in
Figure 1. The Authorized Modifications Label is available through the MDC,
P/N 00451-00001-LBL.

5. Test-drive the vehicle to confirm proper operation and ensure the condition is no
longer present.

© 2021 Toyota Motor Sales, USA