Remote Starting System - Inoperative in Extreme Cold
T-SB-0070-08May 21, 2008
Remote Engine Starter (RES) Cold Temperature Operation
Service Category
Engine/Hybrid System
Section
Starting
Market
USA
Applicability
Introduction
Some vehicles operated in extremely cold climates may experience a condition where the Remote Engine Starter (RES) does not function. Please follow the diagnostic and repair procedures in this bulletin to address any customer concerns.
Parts Information
Warranty Information
APPLICABLE WARRANTY
^ This repair is covered under the Toyota Comprehensive 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 correction of a problem based upon a customer's specific complaint.
Required Tools & Equipment
Repair Procedure
NOTE
The Remote Engine Starter (RES) system was designed to operate at temperature ranges above -22°F (-30°C). Follow the procedures below to determine if RES repair is required.
Condition Diagnosis
Confirm with the customer the following:
1. Did the engine start when you started it manually with a key or start button?
^ NO - Check the Troubleshooting section of the vehicle Repair Manual.
Refer to the Technical Information System (TIS) applicable model and model year Repair Manual:
2007 Camry:
General - Introduction - "Introduction: How to Troubleshoot ECU Controlled Systems: How to Proceed With Troubleshooting"
2007 Camry HV:
General - Introduction - "Introduction: How to Troubleshoot ECU Controlled Systems: How to Proceed With Troubleshooting"
2006 or 2007 RAV4:
General - Introduction - "Introduction: How to Troubleshoot ECU Controlled Systems: How to Proceed With Troubleshooting"
2007 Tundra:
General - Introduction - "Introduction: How to Troubleshoot ECU Controlled Systems: How to Proceed With Troubleshooting"
^ YES - Go to step 2.
2. Was the Remote Keyless Entry (RKE) functioning normally? (Did the hazard lights flash when the Lock button was pressed?)
^ NO - Check the RKE section of the vehicle Repair Manual.
^ YES - Go to step 3.
3. Was the temperature surrounding the vehicle below -4°F (-20°C) when the RES did not operate?
^ NO - Use the RES Troubleshooting Guide to investigate other causes.
Refer to TIS applicable model and model year Accessories Installation:
2007 Camry:
"2007-2009 Camry HV TVIP Remote Engine Starter (RES) Troubleshooting Guide"
2007 Camry HV:
"2007-2009 Camry HV TV/P V4 Remote Engine Starter (RES) Troubleshooting Guide Rev A"
2006 or 2007 RAV4:
"2006-2008 RAV4 TV/P V4 Remote Engine Starter (RES) Troubleshooting Guide Rev A"
2007 Tundra:
"2007 Tundra TV/P V4 Remote Engine Starter (RES) Troubleshooting Guide Rev A"
^ YES - Go to step 4.
4. Did the Remote Engine Starter (RES) function normally after the vehicle and surroundings warmed up to over -4° F (-20°C)?
^ NO - Use the RES Troubleshooting Guide to investigate other causes.
Refer to TIS applicable model and model year Accessories Installation:
2007 Camry:
"2007-2009 Camry TV/P Remote Engine Starter (RES) Troubleshooting Guide"
2007 Camry HV:
"2007-2009 Camry HV TV/P V4 Remote Engine Starter (RES) Troubleshooting Guide Rev A"
2006 or 2007 RAV4:
'2006-2008 RAV4 TV/P V4 Remote Engine Starter (RES) Troubleshooting Guide Rev A"
2007 Tundra:
"2007 Tundra TVIP V4 Remote Engine Starter (RES) Troubleshooting Guide Rev A"
^ YES - Go to step 5.
5. Was the temperature between -22°F and -4° F (-30°C and -20°C) when the RES did NOT operate?
^ NO - The RES may NOT operate in extreme cold temperatures at or below -22°F (-30°C). Explain to the customer that this is normal operation of the system and no repair is required.
^ YES - If the customer confirms that temperatures were between the range of -22°F and -4° F (-30°C and -20°C) when the RES did NOT operate, the Gateway ECU may be at fault.
If temperatures are between -22°F and -4°F (-30°C and -20°C) at the time of repair, test the system before replacing the unit.
If temperatures do NOT allow for confirmation, then the unit may be replaced if the other questions do not address the issue.
If the answers to all of the above are YES, proceed to "Replace the Accessory Gateway (BUS) ECU".
Replace the Accessory Gateway (BUS) ECU
1. Order a NEW Accessory Gateway (BUS) ECU (P/N 08190-33920) from the Accessory Sales Guide (ASG).
2. Remove and replace the Accessory Gateway (BUS) ECU with the NEW part.
Refer to TIS, applicable model and model year Accessories Installation:
2007 Camry (w/ Smart Key):
"2007-2009 Camry (Smart key) TVIP V4 Remote Engine Starter (RES) 08586-3T950 Rev D"
2007 Camry (w/o Smart Key):
"2007-2009 Camry (Non-Smart key) TV/P V4 Remote Engine Starter (RES) 08586-3T950 Rev D"
2007 Camry HV:
"2007-2009 Camry HV TVIP V4 Remote Engine Starter (RES) PT398-33070 Rev B"
2006 or 2007 RAV4:
"2006-2008 RAV4 TVIP V4 Remote Engine Starter (RES) PT08586-42820 Rev E"
2007 Tundra:
"2007-2008 Tundra TVIP V4 Remote Engine Starter (RES) 08586-00910 Rev C"
3. Perform a Function Check.
Verify that the RES is operating properly using the Accessory Function Check section found at the end of your vehicle's RES installation instructions.
NOTE
RES registration is NOT necessary after replacing the Accessory Gateway (BUS) ECU.