Recall Dynamic Stability Control Yaw Rate Sensor Inspection (RB178)

Publication date: 2005-03-08
Reference number: RB178

RECALL DYNAMIC STABILITY CONTROL YAW RATE SENSOR INSPECTION

SERVICE CAMPAIGN BULLETIN

Reference Number(s): RB178, Date of Issue: March 08, 2005

LAND ROVER:	New Range Rover (LM)
ISSUE:	1
SECTION:	General Info
AFFECTED VEHICLES:	New Range Rover (LM) 4A1757238 to 4A178015, Production dates 22 June 2004 - 09 July 2004

SITUATION:

INTERNAL SENSOR FAULT POSSIBLE

Range Rover vehicles equipped with Dynamic Stability Control (DSC) could have had a yaw rate sensor installed that has internally delaminated. This could actuate the DSC system incorrectly, resulting in uneven and unexpected application of the brakes.

RESOLUTION:

INSPECT SENSOR AND REPLACE IF INDICATED

Inspect the suspect yaw rate sensor to determine if it is from the affected production batch. Replace the sensor if it is indicated by the inspection.

PARTS INFORMATION:

NOTE: It is expected that at least 30% of the 23 affected vehicles will require inspection only. SRO 000010 Yaw Rate Sensor Qty 1

DDW WARRANTY CLAIMS:

Warranty claims should be submitted quoting program code B178 together with the appropriate option code. As option codes are used, there is no requirement for you to enter parts or labor. They are repeated here for information only. Drive in/drive out can only be claimed if the vehicle is brought back into the workshop for this action alone to be undertaken.

DDW WARRANTY CLAIM SHEET

Program Code	Option	Job Description	SRO	Time (Hours)	Part Number	Part Description	QTY
B178	A	Inspect DSC sensor identification label - no further action required	70.70.89/28	0.5	N/A	N/A
B178	K	Inspect DSC sensor identification label - no further action required Drive in/drive out	70.70.89/28 02.02.02	0.5 0.2	N/A	N/A
B178	B	Inspect DSC sensor and renew	70.70.89/29	0.6	SRO 000010	DSC Sensor	1
B178	C	Inspect DSC sensor and renew Drive in/drive out	70.70.89/29 02.02.02	0.6 0.2	SRO 000010	DSC Sensor	1

Normal warranty policy and procedures apply.

Material allowance is included in labor operation.

REPAIR PROCEDURE

INSPECT AND REPLACE YAW RATE SENSOR

NOTE: Many affected vehicles have been repaired at the port of entry prior to retail sale. It is important to verify that this Recall action is still outstanding on the vehicle under repair.

Verify that the vehicle is subject to the Recall using the DDW "Vehicle History" screen.
NOTE: GTR lookup sequence is as follows: GTR Home > NAS > Service Information/ LM Range Rover 2004 > Workshop Manuals > Service Procedures > Bookmark "BRAKES/REPAIRS" > link "Sensor - dynamic stability control (DSC)"
Refer to GTR Workshop Manual section 70.70.35 and access the yaw rate sensor.
Inspect the parts identification label on the top of the sensor for production lot numbers S0029201, S0029202 or S0029284. (Fig 1 )

Fig 1: Identifying Parts Identification Label On Top Of Sensor

If any of the production lot numbers S0029201, S0029202 or S0029284 is determined, replace the sensor.
Install removed center console components.