Troubleshooting in navigation system 2
Contents
1. Navigation computer AND on board monitor must be connected e Switch off radio switch on on board monitor display main menu if possible e Measure voltage Between pin 5 and terminal 31 vehicle ground Between pin 6 and terminal 31 vehicle ground Between pin 7 and terminal 31 vehicle ground Evaluating results If on at least one of the 3 lines U 0 V Replace navigation computer U gt 1 4 V Replace on board monitor If on all 3 lines 1 0 V gt U gt 0 2 V carry out the 3rd check as described in the following 3rd check e Test adapter 61 4 470 with 26 pin test box connected navigation computer and on board monitor plugged in e Select menu on on board monitor e Light must NOT be switched on e Multimeter selected Setting Alternating voltage measuring range 1 V e Measure voltage Between pin 5 and terminal 31 vehicle ground Between pin 6 and terminal 31 vehicle ground Between pin 7 and terminal 31 vehicle ground Evaluating results All 3 lines U gt 100 mV If one of the above symptoms applies replace on board monitor On at least 1 line U lt 100 mV Replace navigation computer Test Selection of GPS navigation in menu On board monitor system without video module http www bmw planet com diagrams release en zinfo FOI0997FB 001659001 htm 18 08 2009 Troubleshooting in navigation system 2 Page 7 of 7 GPS navigation is black in selection menu Switch off ignition close all doors and flaps wait approx2. 2 minutes The navigation must then be shown white and be selectable in the menu On board monitor system with video module GPS navigation missing in selection menu If the point GPS navigation is not shown at all in the selection menu in the on board monitor system with video module Try to select navigation via diagnosis If this is not possible work through instructions provided in DIS for reestablishing diagnosis GPS navigation is black in selection menu Switch off ignition close all doors and flaps wait approx 2 minutes The navigation must then be shown white and be selectable in the menu Notes on replacing the navigation computer Installation Proceed as described below to install the navigation computer Ignition lock in position 0 Connect navigation computer to vehicle wiring harness Insert navigation computer in retaining fixture Ignition lock still set to 0 position Close all doors and flaps on the vehicle Wait approx 2 minutes I K bus reset The vehicle must not be moved or be subject to vibration during this waiting period Reason The navigation computer recalibrates its gyro every time it is restarted The gyro reacts to any movement As a result initial calibration which took place while the computer was inserted in the retaining fixture provides faulty values For this reason the navigation computer must be induced to perform a new gyro calibration before the vehicle is driven This is achiev
3. 12 Terminal R ON Measure voltage at aerial plug connector GPS receiver end between pin 1 and pin 2 Setpoint 5 V 0 3 V e If the measured value is in the set range Replace GPS aerial e If the measured value is NOT in the set range Replace GPS receiver Display No almanac Troubleshooting procedure e lf the battery was recently disconnected the battery supply of the GPS receiver interrupted Place vehicle outdoors for 15 minutes with terminal R switched on and unobstructed upward view e If the voltage supply was NOT interrupted Check voltage supply of GPS receiver and repair if necessary If the voltage supply is OK Replace GPS receiver Display Searching for satellites Cause Satellite contact is interrupted This always occurs when visual contact to the sky is restricted e g ina closed room tunnel or in the cover of high buildings or trees The system is OK if the display searching for satellites only comes on under the above conditions Proceed as described below if searching for satellites is also indicated under the conditions The vehicle is outdoors under an open sky with unrestricted upward view terminal R is on for longer than 3 minutes e Make sure that the GPS aerial is not covered e Ifthe GPS aerial is NOT covered by objects protruding beyond the rear window shelf Measure aerial voltage Disconnect aerial plug connector X81008 from GPS receiver Use test adapter No 65 5 012 Terminal R ON Measure voltage at
4. B lines navigation and A menu r A on board monitor wide or too flat for the monitor Ooo o Functions used The sensor test indicated on the on board monitor is assistance during troubleshooting The sensor test can be selected as follows http www bmw planet com diagrams release en zinfo FOI0997FB 001659001 htm 18 08 2009 Troubleshooting in navigation system 2 Page 2 of 7 Selection on board monitor main menu Selection Settings in on board monitor main menu Press and hold the MENU button longer than 8 s in the settings mask e Select sensor test The following display then appears on the on board monitor 1 2 ree ae GPS Satelliten 0 3 Jae Status Kein Almanach Q fFahrtrichtung Rickwarts a zur ck P650001 Significance of displays for setpoints see table in function test in next chapter Wheel sensor Number of pulses of speed sensor per minute 2 GPS satellites Number of satellites currently received by GPS GPS status See test for displays and remedy GPS Gyro Direction arrow voltage supplied by gyro in mV Driving direction Reverse forward Function test Procedure e Select sensor test on on board monitor e Drive several small diameter circles with the vehicle outdoors e Observe displays indicators for sensor test Setpoints while driving in circles outdoors If not OK carry out following Display test 1 While driving as from approx 5 Wheel spee
5. Troubleshooting in navigation system 2 meeknet co uK Page 1 of 7 Troubleshooting in navigation system 2 Pin assignments functions etc apply to vehicles of the series E38 and E39 with navigation system 2 as from production break PU 97 Introduction The navigation system is a dynamic system which is mainly active while driving For this purpose displays have been created on the on board monitor of the navigation system 2 which make it possible to check the system while driving The test instructions have been set up as follows with the aim of effectively utilizing these functions e Fault symptoms with reference to the components to be tested e Explanation of on board monitor functions which are used for troubleshooting e Tests and checks for the individual assemblies in the following sequence Function test speed sensor GPS aerial and receiver reverse signal gyro sound NF display RGB selection e Notes on replacing the navigation computer Important Observe the installation notes last chapter in these instructions when installing or replacing the navigation computer It is advisable to print out this document and keep it with you as a reference during troubleshooting Fault symptoms Fault symptom Test to be carried out Faulty positioning GPS gyro System does not respond to changes in Gyro direction Incorrect distance data in the turnoff Wheel speed sensor instructions Incorrect indication colours etc RG
6. aerial plug connector GPS receiver end between pin 1 and pin 2 Setpoint 5 V 0 3 V e If the measured value is in the set range Replace GPS aerial e If the measured value is NOT in the set range Replace GPS receiver Display Satellite contact The GPS system is OK Display Position known The GPS system is OK Test Reverse Procedure 1st check Alternately engage reverse and forward gears Is the status shown correctly on the on board monitor sensor test If status is shown correctly Reverse is recognized correctly Subsystem is OK http www bmw planet com diagrams release en zinfo FOI0997FB 001659001 htm 18 08 2009 Troubleshooting in navigation system 2 Page 5 of 7 If the status is NOT shown correctly 2nd check Navigation computer input e Connect test adapter 61 4 470 to plug connection X 1312 e Measure voltage between pin 1 and terminal 31 vehicle ground Setpoints Engage reverse gear U gt approx 5 V Reverse NOT engaged U approx 0 V e If the measured value is in the set range Replace navigation computer e If the measured value is NOT in the set range Check line from light module to navigation computer plug connector X1312 pin 1 if line is OK Continue troubleshooting in the light module Test Gyro Procedure Select sensor test evaluate display 1 with vehicle stationary Is the voltage in the range of 2500 mV 400 mV If value is not OK Replace navigation computer Refer to notes on replacin
7. d sensor km h gt 0 2 With unobstructed upward field of GPS vision gt 3 http www bmw planet com diagrams release en zinfo FOI0997FB 001659001 htm 18 08 2009 Troubleshooting in navigation system 2 Page 3 of 7 3 Position known searching for GPS satellite contact satellite contact position known 4 When stationary driving straight ahead 2500 mV 400 mV while turning off Outside above specified range Direction arrow clearly moves out Gyro of zero position when turning off 5 Status of reverse gear is Reverse recognized correctly Test Wheel speed sensor Fault symptom Incorrect distance data in the turnoff instructions Precondition No fault code stored for the speed sensors in ABS ASC DSC warning lamp does not come on Procedure 1st check Select sensor test on the on board monitor drive vehicle at speed gt 5 km h Is a value gt 0 indicated for the speed sensor pulses while driving If a value gt 0 is indicated then the part test for the speed sensors OK If value 0 2nd check Oscilloscope measurement of speed sensor signals Connect test adapter 61 4 470 with 26 pin test box at plug connection X1312 Raise vehicle observe safety instructions Select oscilloscope in lt Measuring systems lt Connect test lead MFK1 between pin 1 main vehicle wiring harness end and terminal 31 vehicle ground Settings Direct voltage frequency 20 Hz measuring range 20V e Uniformly turn
8. ed by resetting the I K bus as described in the above Encoding After replacement the navigation computer must be encoded with Coding ZCS Test drive In contrast to the navigation system of the 1st generation an intricate calibration driving procedure is not necessary but rather only a test drive of approx 15 minutes after replacing the navigation computer Observe the following points e The I K bus was reset as described under installation e Drive for approx 15 minutes in different directions in an area in which GPS reception is not permanently restricted by tunnels high buildings or trees Reason The navigation computer must carry out its automatic wheel calibration procedure This takes approx 15 minutes under conditions of uninterrupted GPS reception http www bmw planet com diagrams release en zinfo FOI0997FB 001659001 htm 18 08 2009
9. front left wheel by hand e Replace the navigation computer if a square wave signal is indicated but the navigation computer does not recognize it 0 indication in sensor test e f no square wave signal is indicated check lines leading to ABS ASC DSC control unit and if lines are OK continue troubleshooting in ABS Test GPS aerial and receiver Precondition No covers on the GPS aerial Procedure Read GPS status in sensor test on the on board monitor display line 3 Display GPS fault Cause There is no communication between the navigation computer and the GPS receiver Troubleshooting procedure http www bmw planet com diagrams release en zinfo FOI0997FB 001659001 htm 18 08 2009 Troubleshooting in navigation system 2 Page 4 of 7 e Check voltage supply of GPS receiver and repair if necessary Plug connector X1958 terminal R Pin 7 terminal 31 Pin 1 terminal 30 Pin 8 e f voltage supply is OK Check wires between navigation computer and GPS receiver and repair if necessary e If wires are OK Replace GPS receiver Display Reception fault Cause Communication between the navigation computer and GPS receiver is OK however there is no satellite information Troubleshooting procedure e Make sure that the GPS aerial is not covered e Ifthe GPS aerial is NOT covered by objects protruding beyond the rear window shelf Measure aerial voltage Disconnect aerial plug connector X81008 from GPS receiver Use test adapter No 65 5 0
10. g the navigation computer If value is OK e Drive in circles with small diameters in a car park e Observe indication in line 4 while driving in circles e Setpoint While driving in circles the arrow indicator in line 4 must move distinctly out of the zero position i e the indicated value must deviate distinctly from 2500 mV If the indication is within the setpoints System OK If the indication is NOT within the setpoints Replace navigation computer refer to installation instructions for navigation computer last chapter of this document Test Sound AF On board monitor system with video module Work through the corresponding test modules in the diagnostic program for the video module in order to check the AF lines Sound System without video module 1st check Is the sound radio cassetie mode OK Sound in radio cassette mode not OK Continue troubleshooting in the radio Sound in radio cassette mode OK 2nd check Disconnect plug connection X18805 at navigation computer Connect V adapter lead 61 4 470 with 26 pin test box to plug connection X1313 Select oscilloscope in measuring systems Test lead MFK1 to pin 9 and pin 18 Setting Alternating voltage frequency 200 Hz measuring range 5 V Select lt Information gt lt volume matching gt in navigation system e Activate voice output test tone under volume matching with rotary knob push button e Check Is the signal visible on the oscilloscope for the duration
11. of the test tone voice output e Signal visible Check lines between navigation computer and radio and repair if necessary If OK Continue troubleshooting in the radio e Signal not visible Replace navigation computer http www bmw planet com diagrams release en zinfo FOI0997FB 001659001 htm 18 08 2009 Troubleshooting in navigation system 2 Page 6 of 7 Test Image RGB On board monitor system with video module Work through the corresponding test modules in the diagnostic program for the video module in order to check the AF lines RGB lines navigation computer video module Image On board monitor system without video module Symptoms Faults in menu display AND navigation no menu display incorrect colours image picture geometry not OK Instructions e Disconnect plug connection X1313 e Measure resistance at disconnected plug connection vehicle wiring harness end Between pin 7 and pin 16 setpoint approx 50 Ohm Between pin 7 and pin 17 setpoint approx 50 Ohm Between pin 7 and pin 18 setpoint approx 50 Ohm If at least one of the measured values is NOT in the specified range Check lines from navigation computer to on board computer and repair if necessary If wires are OK Replace on board monitor If measured values are in specified range e Select multimeter in measuring systems Settings Direct voltage measuring range 1 V e Connect test adapter 61 4 470 with 26 pin test box to plug connector X1313
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