Heated Oxygen Sensor (Ho2S) Diagnostics On AJ133 5.0L (NA & SC) And AJ126 3.0L ( (SSM72036)

WARNING: This page is about the LR4 Base, which is a different variant/trim than selected.

Publication date: 2014-10-24
Reference number: SSM72036

HEATED OXYGEN SENSOR (HO2S) DIAGNOSTICS ON AJ133 5.0L (NA & SC) AND AJ126 3.0L (

TECHNICAL SERVICE BULLETIN

Reference Number(s): SSM72036, Date of Issue: October 24, 2014

LAND ROVER:	LR4/L319; Range Rover/L405; Range Rover Sport/L494; Range Rover/L322; Range Rover Sport/L320
CATEGORY:	Driveability

SERVICE INFORMATION

Symptom 698298 Malfunction Indicator Lamp

Content

CONCERN

Jaguar Land Rover and the supplier have inspected 101 warranty claims for Heated Oxygen Sensors (HO2S). 23% were found to have no defects.

CAUSE

One possible reason for this is that all HO2S sensors are replaced when only one is unserviceable.

It is also possible that the DTC information is not clear about which sensor to change, or the correct test method to make a decision whether the sensor works correctly or not.

NOTE: One defective sensor does not show that others will become unserviceable.

ACTION

Follow the updated TOPIx section 303-14 Diagnosis and testing - Electronic Engine Controls DTC: Heated Oxygen Sensors (HO2S). This will improve the accuracy of the repair and reduce unnecessary work.

Support vehicles

Discovery 4 (L319) 2011my onwards

Range Rover Sport (L320) 2011my onwards

Range Rover (L322) 2011my onwards

Range Rover (L405) 2012my onwards

Range Rover Sport (L494) 2013my onwards

Technicians - Please score the SSM and provide feedback if you scored it 1 - 3 stars.

1 = Poor - Basic information provided - The SSM does not help me resolve the customer concern.

3 = Average - Adequate information provided - The SSM partially helps me resolve the customer concern.

5 = Excellent - All required information provided to resolve the customer concern.