Tag Archives: SDD

How to fix Land Rover OCC Occupant Sensor Fault P046

Topix:

How to Fix Land Rover(2012-2016) OCC fault without replace parts (use SDD)

Introduce you how to upgrade calibration file in OCC module (Occupant Classification Sensor Control Module).

Disclaimer: Here’s TSB file from repair.alldata.com. It is for professional technician with knowledge. You are at your risk.

Safety Recall: Supplementary Restraint System (SRS) Warning Lamp Illuminated
Fault code: P046: Update Occupant Classification Sensor Control Module software

Range Rover Evoque (LV)
Model year: 2012-2013

LR2 (LF)
Model year: 2010-2015

AFFECTED VEHICLE RANGE:
MARKETS: NAS

CONDITION SUMMARY: 
This Service Instruction may be performed on all affected vehicles from SDD-DVD139.00 v184 software release.


Situation: 
A concern has been identified with the Supplementary Restraint System (SRS) passenger airbag which may be totally or partially disabled as a result of physical cell wear out of the Electrically Erasable Programmable Read-Only Memory (EEPROM) within the Occupant Classification Sensor Control Module (OCSCM). When this condition is detected by the SRS system self-test, completed at ignition on, the OCSCM will shut down. This condition results in Diagnostic Trouble Code (DTC) U0154-00 being set in the Restraints Control Module (RCM) along with continuous illumination of the SRS warning lamp on the Instrument Cluster. Range Rover Evoque vehicles will also illuminate the Passenger Airbag Disable indicator (PADi) lamp in the overhead console. The condition may clear on the next subsequent ignition cycle.


Action: 
Retailers are required to HOLD all affected vehicles that are within your control and refrain from releasing the vehicles for new or used vehicle sale pending completion of the rework action detailed in this Technical Bulletin. Unsold vehicles should have this performed as part of the Pre-Delivery Inspection (PDI) process but must have it completed prior to vehicle handover to the customer. Affected vehicles already in the hands of customers should be updated at the next available opportunity.

PARTS: 
No parts required

SPECIAL TOOLS:

NOTE: this document is an ‘Active Bulletin’ that will display a functional programming shortcut if accessed within a diagnostic session using JLR SDD diagnostic interface.

SDD with latest SDD-DVD and Calibration File
Jaguar Land Rover-approved Midtronics Battery Power Supply

land-rover-fault-code-p046

WARRANTY:
SERVICE INSTRUCTION:

CAUTION: a Jaguar Land Rover-approved Midtronics battery power supply must be connected to the vehicle battery during SDD diagnosis / module programming.

CAUTION: ensure all ignition ‘ON’ / ignition ‘OFF’ requests are carried out; failure to perform these steps may cause damage to control modules in the vehicle.

NOTE: SDD must be loaded with DVD139.00 v.184 or later.

1. Connect the Jaguar Land Rover-approved Midtronics battery power supply to the vehicle battery. 2. Turn ignition ‘ON’ (engine not running).
3. Connect the Symptom Driven Diagnostics (SDD) system to the vehicle and begin a new session.
4. Follow the on-screen prompts, allowing SDD to read the VIN and identify the vehicle and initiating the data collect sequence.
5. Select ‘Diagnosis’ from the Session Type screen.
6. Select the ‘Selected Symptoms’ tab, and then select the following: ^ Electrical > Instruments > Warning lamps > Air bag warning lamp
7. Select the ‘Recommendations’ tab.
8. Locate any of the recommended publications listed there and select ‘Read’.
9. Close the document selected in step 8.
10. Select the ‘Extras’ tab.
11. From the Recommendations list, select Run to perform the ‘Configure existing module – Restraints occupant classification system module’ option.
12. NOTE: due to constraints within the Occupant Classification Sensor Control Module hardware design, the software download may fail on the first attempt and display ‘An unspecified error has occurred’. In order to minimize this, the following instructions should be followed:
Once the software download parts confirmation screen is presented:
^ Turn the ignition ‘OFF’.
^ Press the on-screen green check mark (tick) to continue.
^ Turn the ignition ‘ON’ when SDD displays a blue scroll bar in the center of the screen.
^ This should be within 10 seconds of pressing the green check mark (tick) on the software      download confirmation screen.
^ If the software download fails, there will be an option presented to ‘retry’.
^ Select ‘retry’ and perform the above steps again.
^ Should the download fail two (2) consecutive times, continue to the next step.
13. NOTE: this step only needs to be run if the software download above has failed two (2) times. Once the software download parts confirmation screen is presented, remove the OCSCM fuse.
^ The fuse box is located in the passenger compartment:

land-rover-fuse-box

^ ‘1’ – Range Rover Evoque: fuse 56P [fuse rating 10A]
^ ‘2’ – LR2: fuse FS2 [fuse rating 10A] – 2010-2012MY; fuse FP60 [fuse rating 10A] – 2013-2015MY
^ Press the on-screen green check mark (tick) to continue.
^ Install the previously removed OCSCM fuse when SDD displays a blue scroll bar in the center of the screen.
^ This should be within 10 seconds of pressing the green check mark (tick) on the software download confirmation screen.
^ If the download is completed successfully, continue to the next step.
^ If the download fails again, please contact your local Technical HelpLine for assistance.
14. Follow all on-screen instructions to complete this task.
15. Exit the current session.
16. Disconnect the SDD and the battery power supply from the vehicle.

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