ECM/O2 Sensor - MIL ON/DTC's Set: Overview

Classification:
EC01-037

Reference:
ITB02-002

Date:
January 15, 2002

2001 QX4; MIL "ON" WITH REAR OXYGEN SENSOR DTC PO138 - P0140 OR P0158 - P0160 STORED

APPLIED VEHICLE:
2001 QX4 (JR50)

SERVICE INFORMATION

If an applied vehicle has a MIL 'ON' with one of the following DTCs stored:

^ P0138

^ P0139

^ P0140

^ P0158

^ P0159

^ P0160

The cause may be a broken or cracked rear oxygen sensor element.

SERVICE PROCEDURE

1. Use CONSULT-II SELF DIAGNOSIS to determine the stored DTCs.

2. Replace the oxygen sensor at the incident cylinder bank(s) indicated by the stored DTC listed in CONSULT-II. Refer to the Parts Information section to determine the correct oxygen sensor to be installed.

3. Use CONSULT-II to determine the ECM P/N (in the vehicle).





A. If the ECM P/N is one of those listed under "CURRENT ECM P/N" in the table shown, reprogrammed the ECM to the "NEW ECM P/N" listed in the table.

For the ECM reprogramming procedure, refer to Attachment A in this bulletin.

B. If the ECM P/N is NOT one of those listed under "CURRENT ECM P/N" in the table, do not reprogram the ECM. Return the vehicle to the customer after replacing the oxygen sensors.





PARTS INFORMATION

CLAIMS INFORMATION





Submit a Primary Failed Part (PP) line claim using the claims coding table as shown.