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JamesH
JamesH, Auto Service Technician
Category: Toyota
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Experience:  Auto Service Tech
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2007 Toyota Tundra: engine light came..The error codes the dealer

Customer Question

My 2007 Toyota Tundra check engine light came on and I took it to the Toyota dealer for service. The error codes the dealer found were P2442 and C1201. The dealer thinks it could be aproblem with the air injection switching valve. The dealer wants $425 to access the valve and diagnose if the vale needs replacement. The dealer stated it would be $1,295 to replace. The truck only has 43,000 miles is this a common problem with Tundras?
Submitted: 5 years ago.
Category: Toyota
Expert:  JamesH replied 5 years ago.
Looks like there is a issue that is happened enough to have a bulletin on the issue. The dealer has a pretty extensive plan to follow I just dont see your exact code but I looked it up and the issue is very similiar. I will post the bulletin for you to see. So to answer your question yes its a common issue and yes they should pay for it but they wont, let me know if you have furthur questions, Thanks!

Notes

T-SB-0029-08

Rev2

April 4, 2008

Air Injection Control Driver

Service Category

Engine/Hybrid System

Section
Engine Control Market
USA

Applicability

TSB REVISION NOTICE

^ September 18, 2008 Rev2:
^ The step reference has been updated in the second paragraph of step 2 in The Repair Procedure.
^ June 13,2008 Rev1:
^ Warranty Information has been updated with a new operation code.
^ The Repair Procedure has been expanded.

Any previous printed versions of this service bulletin should be discarded.

Introduction

Some 2007 model year Tundra vehicles may exhibit a M.I.L. "ON" condition with Diagnostic Trouble Codes (DTCs) P0412, P0415, P0418, P0419, P2445, or P2447. This concern may be caused by the air injection control driver. Use the following procedure to address the customer's concern.

Warranty Information

APPLICABLE WARRANTY

^ This repair is covered under the Toyota Basic 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.

Production Change Information

This TSB applies to vehicles produced BEFORE the Production Change Effective VINs shown.

Parts Information

Required Tools & Equipment

Additional TIS techstream units may be ordered by calling Approved Dealer Equipment (ADE).


Components

Repair Procedure

1. Using Techstream check if DTCs P0412 and/or P0415, P0418, P0419, P2445, P2447 are present.
2. Using Techstream perform the manual Air Injection Active Test (options 1 and 2) to verify if the signal from the air injection control driver is reaching the air pumps. A properly functioning Secondary Air Injection System will show an increase in the Air Pressure (gauge) value from 0 to 1 psi as shown on Techstream.

If the signal reached the pump and there was a pressure increase the driver may NOT be the issue. Go to step 5.

If the signal did NOT reach the pump and NO pressure increase occurred go to step 3.

3. Measure the resistance and voltage of the air injection control power source circuit.

Refer to the Technical Information System (TIS) 2007 model year Tundra Repair Manual:

^ P0412/P0415:

Engine/Hybrid System - Engine Control - "3UR-FE / 2UZ-FE / 1GR-FE Engine Control System: SFI System: P0412: Secondary Air Injection System Switching Valve "A" Circuit" (P0415: Secondary Air Injection System Switching Valve "B" Circuit)

^ P0418/P0419:

Engine/Hybrid System - Engine Control - "3UR-FE / 2UZ-FE / 1GR-FE Engine Control System: SFI System: P0418: Secondary Air Injection System Control "A" Circuit" (P0419: Secondary Air Injection System Control "B" Circuit)

^ P2445/P2447:

Engine/Hybrid System - Engine Control - "3UR-FE / 2UZ-FE / 1GR-FE Engine Control System: SFI System: P2444: Secondary Air Injection System Pump Stuck On Bank 1" (P2445: Secondary Air Injection System Pump Stuck Off Bank 1, P2447: Secondary Air Injection System Pump Stuck Off Bank 2)

4. If any value in the preceding step is out of specification, replace the air injection control driver.

Refer to TIS 2007 model year Tundra Repair Manual:

^ Engine/Hybrid System - Emission Control - "3UR-FE / 2UZ-FE / 1GR-FE Emission Control: Air Injection Driver: Removal"
^ Engine/Hybrid System - Emission Control - "3UR-FE / 2UZ-FE / 1GR-FE Emission Control: Air Injection Driver: Installation"

If all values are within specification continue to step 5.

5. If the air injection driver is within specification or the DTCs are still present after replacement inspect the air injection system.

Refer to TIS 2007 model year Tundra Repair Manual:

^ P0412/P0415:

Engine/Hybrid System - Engine Control - "3UR-FE / 2UZ-FE / 1GR-FE Engine Control System: SFI System: P0412: Secondary Air Injection System Switching Valve "A" Circuit" (P0415: Secondary Air Injection System Switching Valve "B" Circuit)

^ P0418/P0419:

Engine/Hybrid System - Engine Control - "3UR-FE / 2UZ-FE / 1GR-FE Engine Control System: SFI System: P0418: Secondary Air Injection System Control "A" Circuit" (P0419: Secondary Air Injection System Control "B" Circuit)

^ P2445/P2447:

Engine/Hybrid System - Engine Control - "3UR-FE / 2UZ-FE / 1GR-FE Engine Control System: SFI System: P2444: Secondary Air Injection System Pump Stuck On Bank 1" (P2445: Secondary Air Injection System Pump Stuck Off Bank 1, P2447: Secondary Air Injection System Pump Stuck Off Bank 2)

Expert:  JamesH replied 5 years ago.
I know its alot of information but I wanted you to see what they are going to do. This is a bulletin so when the vehicle has alot of the same issues they create a bulletin. Let me know if you have any questions or if I can do anything else.. Thanks!

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