Canada - Engine Controls - AF Sensor Identification

Bulletin
TSB2088R

Issue Date
August 27, 2004

Market
Canada

Title
ENGINE BANK 1 AND BANK 2 A/F AND O2 IDENTIFICATION

Component
ENGINE ELECTRICAL

Models
'93 - '10 Applicable Toyota Models

TSB REVISION NOTICE
- March 4, 2010: Applicability has been updated to include 2009 - 2010 model year vehicles and 2006 - 2010 model year Highlander HV.

Any previous printed versions of this TSB should be discarded. Be sure to review the entire content of this service bulletin before proceeding.

INTRODUCTION:

This service bulletin provides information on the proper identification of engine bank 1 and engine bank 2 for correct A/F sensor and oxygen sensor replacement.

This bulletin contains information that identifies engine bank 1 and engine bank 2 on the following engines:
1AZ-FE, 2AZ-FE, 2AZ-FE (PZEV), 1GR-FE, 2GR-FE, 2JZ-GE, 1MZ-FE, 3MZ-FE, 1UR-FE, 3UR-FE, 2UZ-FE, 5VZ-FE, and 1ZZ-FE.
- Bank 1 [B1] refers to the bank that includes cylinder No. 1.
- Bank 2 [B2] refers to the bank opposite bank 1.
- Sensor 1 [S1] refers to the sensor that is located before the catalytic converters.
- Sensor 2 [S2] refers to the sensor that is located after the catalytic converters.

APPLICABILITY:

WARRANTY INFORMATION:

APPLICABLE VEHICLES:

ENGINE BANK IDENTIFICATION:

Figure 1. Engine Bank Identification: 1UR-FE, 3UR-FE, 2UZ-FE

Figure 2. Engine Bank Identification: 2GR-FE, 1MZ-FE, 3MZ-FE

Figure 3. Engine Bank Identification: 1GR-FE, 5VZ-FE

Figure 4. Engine Bank Identification: 2JZ-GE

Figure 5. Engine Bank Identification: 1ZZ-FE

Figure 6. Engine Bank Identification: 1AZ-FE

Figure 7. Engine Bank Identification: 2AZ-FE

Figure 8. Sensor Identification: FWD V6

Figure 9. Sensor Identification: 2AZ-FE PZEV

NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.