# Service bulletin LTB00478NAS2

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10100824
- Published by NHTSA: 2017\-05\-26
- Manufacturer's number: LTB00478NAS2
- Manufacturer's date: 2013\-08\-20
- NHTSA component: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; TRACTION CONTROL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

"SITUATION: A ‘TRANSMISSION FAULT\-TRACTION REDUCED’ MESSAGE MAY BE DISPLAYED IN THE MESSAGE CENTER AND DIAGNOSTIC TROUBLE CODE \(DTC\) P1889\-14 OR P0961\-62 MAY BE STORED IN THE REAR DIFFERENTIAL CONTROL MODULE \(RDCM\). NOTE: ANY REPAIRS OTHER THAN CONFIGURING THE REAR DIFFERENTIAL CONTROL MODULE \(RDCM\) MUST BE CARRIED OUT AS A SEPARATE CLAIM. CAUSE: THIS MAY BE CAUSED BY THE REAR DIFFERENTIAL CONTROL MODULE \(RDCM\) DIAGNOSTIC FUNCTION BEING TOO SENSITIVE, LEADING TO THE FALSE DETECTION OF OPEN CIRCUITS OR STICKING VALVES IN THE ACTIVE ON\-DEMAND COUPLING ASSEMBLY."

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Driver assistance, Electrical system, Transmission and driveline, Differential, Software

## Trouble codes named

P0961, P1889

## Vehicles listed

- 2009 to 2011 LAND ROVER LR2

## Other bulletins for the same vehicles and component

- [SSM71360](/bulletins/10206635.md), 2022-01-18, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Software Update.
- [SSM46477](/bulletins/10106024.md), 2017-06-12, Service bulletin: EQUIPMENT:MECHANICAL; POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. "RE\-ISSUED DEC 2015 ISSUE: EXCESSIVE RUMBLE/HUMMING NOISE OR HIGH PITCHED WHINE COMING FORM THE REAR OF THE VEHICLE CAUSE: ROOT CAUSE, PINION TAIL BEARING SPALLING CAUSED BY SUBSURFACE MATERIAL DEFORMATION. CAUSE OF SUBSURFACE DEFORMATION IS STATIC OVERLOAD."
- [SSM72531](/bulletins/10105985.md), 2017-06-12, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM:SOFTWARE; ENGINE. "ISSUE: SYMPTOM: \- ENGINE MIL ILLUMINATED ON IPC. ROUGH IDLE, HESITATION AND/OR LOSS OF POWER. ONE OR MORE OF THE FOLLOWING DTCS MAY BE SET IN THE PCM: • P008A, • P008B, • P2542. CAUSE: SUB\-OPTIMAL PCM SOFTWARE CALIBRATION"
- [SSM72237](/bulletins/10105966.md), 2017-06-12, Service bulletin: POWER TRAIN:DRIVELINE; ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. "ISSUE: APPLICABLE TO VEHICLES FITTED WITH EFFICIENT DRIVELINE ONLY. NOT APPLICABLE TO VEHICLES FITTED WITH ACTIVE DRIVELINE. LOSS OF ALL WHEEL DRIVE FUNCTIONALITY CAUSING THE VEHICLE TO OPERATE IN 2 WHEEL DRIVE ONLY.CAUSE: DURING REPLACEMENT AND CONFIGURATION OF A NEW RDCM, DAMAGE MAY BE CAUSED TO THE PRINTED CIRCUIT BOARD \(PCB\) WITHIN THE RDCM DUE TO THE CONNECTION OF THE BATTERY EARTH CABLE."
- [SSM72011](/bulletins/10105863.md), 2017-06-09, Service bulletin: EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. "ISSUE THE WRONG COMPONENT MAYBE REPLACED WHEN TROUBLESHOOTING BLUETOOTH CONNECTIVITY IN CAR. CAUSE THE FRONT CONTROL DISPLAY INTERFACE MODULE\(TOUCHSCREEN\) HAS NO EFFECT ON BLUETOOTH CONNECTIVITY IN THE CAR AND AS SUCH MAY BE INCORRECTLY DIAGNOSED AND REPLACED AS THE SOURCE OF THE ISSUE."
- [LTB00829NAS1](/bulletins/10105762.md), 2017-06-09, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. "SITUATION: THE VEHICLE BATTERY IMAY BE FLAT OR ONE OF THE FOLLOWING MESSAGES/WARNING LIGHTS MAY BE DISPLAYED ON THE INSTRUMENT CLUSTER: • FAULTY GENERATOR • FAULTY BATTERY MONITORING SYSTEM \(BMS\) • THE CHARGE WARNING INDICATOR IS ILLUMINATED WHEN THE ENGINE IS RUNNING. CAUSE: THE POWER SUPPLY IS A FULLY INTEGRATED SYSTEM THAT REQUIRES SDD TO DIAGNOSE OVERALL FUNCTIONALITY ROBUSTLY TO MAKE SURE CUSTOMER SATISFACTION IS MET VIA RIGHT FIRST TIME DIAGNOSIS."
- [LTB00782NAS1](/bulletins/10105732.md), 2017-06-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM:SOFTWARE. "SITUATION: A NUMBER OF TRANSMISSION SHIFT QUALITY CONCERNS MAY BE EVIDENT. EXAMPLES ARE: • A ROUGH GEAR CHANGE OR 'JERK' FROM STATIONARY WHEN SELECTING DRIVE\(D\) FROM NEUTRAL\(N\). • A ROUGH GEAR CHANGE OR 'JERK' WHEN RELEASING THE FOOT BRAKE FROM A STATIONARY POSITION WHILE THE VEHICLE IS IN DRIVE\(D\) \(HANDBRAKE NOT APPLIED\). FOR EXAMPLE, IN A TRAFFIC JAM OR PULLING AWAY FROM TRAFFIC LIGHTS. • A ROUGH GEAR CHANGE OR 'JERK' WHILE DRIVING VEHICLE ON COASTDOWN FROM SIXTH GEAR \(OFF ACCELERATOR\) BUT ONLY WHEN DOWNSHIFTING FROM FIFTH TO FOURTH GEAR. CAUSE: THIS MAY BE CAUSED BY TRANSMISSION CONTROL MODULE \(TCM\) SOFTWARE PROGRAMMING."
- [SSM72205](/bulletins/10105405.md), 2017-06-07, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. "ISSUE ONLY APPLICABLE TO SOFTWARE VERSIONS 30.3 \(GEN 3\) FK72\-14C104\-AF AND 29.3 \(GEN 2\) DPLA\-14C104\-AG WHEN CHECKING FOR FAULT CODES LOGGED IN THE KVM \(KEYLESS VEHICLE MODULE\) ALSO KNOWN AS THE RFA \(REMOTE FUNCTION ACTUATOR\) F000\-63/U3000\-63, CONTROL MODULE \- CIRCUIT/ COMPONENT PROTECTION TIME\-OUT IS LOGGED. CAUSE THIS DTC IS SET WHEN THE KVM HAS GONE THROUGH A “SELF RESET”"
- [SSM54417](/bulletins/10103481.md), 2017-06-06, Service bulletin: STEERING:RACK AND PINION; EQUIPMENT:MECHANICAL; POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. "ISSUE: A CUSTOMER MAY REPORT A CONCERN OF EXCESSIVE HUMMING NOISE AND OR RUMBLE OR HIGH PITCHED WHINE COMING FROM THE REAR OF THE VEHICLE, DEALER DIAGNOSIS IDENTIFIES THE NOISE IS COMING FROM THE REAR DIFFERENTIAL ASSEMBLY. CAUSE: THE PINION TAIL BEARING IS WORN DUE TO STATIC OVER LOADING."
- [SSM72011](/bulletins/10102721.md), 2017-06-02, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL. "ISSUE THE WRONG COMPONENT MAYBE REPLACED WHEN TROUBLESHOOTING BLUETOOTH CONNECTIVITY IN CAR. CAUSE THE FRONT CONTROL DISPLAY INTERFACE MODULE \(TOUCHSCREEN\) HAS NO EFFECT ON BLUETOOTH CONNECTIVITY IN THE CAR AND AS SUCH MAY BE INCORRECTLY DIAGNOSED AND REPLACED AS THE SOURCE OF THE ISSUE"

JSON: [/v1/bulletins/10100824](/v1/bulletins/10100824)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20LTB00478NAS2&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10100824&vehicle=Service%20bulletin%20LTB00478NAS2)