E65 operational test of telephone USA

Telephone E65 USA with Motorola mobile phone, type V3690 (as at 06.09.2000)

The test sequences are for troubleshooting without a diagnosis tester. The possible customer complaints are divided into 4 test sections.

Test section 1

Run test section 1 in the case of the following complaints:

Despite spiral cable connection, the cellular phone is not charged
The lighting and sound signal do not function during the cellular phone connect
No display of telephone functions on the MMI
No hands-free mode possible

Inspection point	Initial state	Instruction to the technician	Question to the technician	Measures for the technician
1	Attach functioning, switched off BMW mobile phone, snap into the mobile phone cradle and open the flip	Run terminal change from terminal 0 to terminal R	Does a beep sound? Does the mobile phone switch on?
			YES ==>	OK; no other measures required
			NO ==>	Continue with inspection point 2
2		Check fuse for the telephone	Fuse OK?
			YES ==>	Continue with inspection point 3
			NO ==>	Replace fuse; repeat inspection point 1
3		Measure voltage at the telephone control unit (terminal 30/31)	Are the voltage supplies present at the control unit?
			YES ==>	Continue with inspection point 4
			NO ==>	Check wiring harness; repeat inspection point 1
4		Run hardware-specific self-test via diagnosis (internal fault recognition)	Self-test OK?
			YES ==>	MOST bus and mobile phone control unit communication OK; no other measures required
			NO ==>	Continue with inspection point 5
5		Read out defect code memory	Are communication faults between the control unit and cellular phone stored in the fault code memory?
			YES ==>	Erase fault memory; check mobile phone cradle / wiring harness
			NO ==>	OK

Test section 2

Run test section 2 in the case of the following complaints:

Poor voice quality in the hands-free mode
No good connection to called party
No hands-free mode possible

Inspection point	Initial state	Instruction to the technician	Question to the technician	Measures for the technician
1	Connect functioning cellular phone, spa into the cradle and leave flip closed; terminal R is switched on, radio, CD or navi are in operation	Use a vehicle operating unit (MMI / TeleCommander / MFL) to set up a call	Does the radio / CD or navi go mute? Does the dialling tone sound from the loudspeakers? Is the caller understood when call accepted?
			YES ==>	OK; no other measures required
			NO ==>	General fault in the MOST bus system; check ASK if necessary
2			Does the called party understand?
			YES ==>	Microphone branch is OK; continue with inspection point 3
			NO ==>	Continue with inspection point 3
3		Accept the call on the cellular phone	Compare voice quality between hands-free mode and cellular phone. Are there quality differences?
			YES ==>	Replace hands-free microphone; repeat inspection point 3
			NO ==>	OK; no other measures required

Test section 3

Run test section 3 in the case of the following complaints:

Permanent display of ”Searching” in the cellular phone display
Empty battery symbol in the display despite coilcord connection
Weak reception of the mobile phones in standalone mode
Weak reception despite coilcord connection

Inspection point	Initial state	Instruction to the technician	Question to the technician	Measures for the technician
1	The cellular phone is no longer being charged (customer statement). Mobile phone beeping every minute, empty battery symbol in the display	1. Replace batteries with original Motorola replacement batteries	Can the cellular phone be switched on again?
			YES ==>	Cellular phone OK
			NO ==>	Replace cellular phone; send original cellular phone to Motorola
		2. Run tests under test section 1
2	Permanent ”Searching” in the display	Check aerial supply line	Are all the plug-in connections OK? Are all cables undamaged?
			YES ==>	OK; continue with inspection point 3
			NO ==>	Restore plug-in connections; replace cables if necessary
3		Check cellular phone: Disconnect cellular phone from spiral cable (coilcord), pull out aerial completely, switch to an area with good service	Does the signal strength change in the cellular phone display?
			YES ==>	Cellular phone OK; change vehicle or cellular phone location
			NO ==>	Replace cellular phone; send original cellular phone to Motorola
4		Check whether the telephone control unit is functioning (see test section 1)	Is the telephone control unit OK?
			YES ==>	Telephone control unit OK; continue with inspection point 5
			NO ==>	Replace telephone control unit; continue with test section 1
5		Check compensator supply wire per diagnosis	Is the switching signal 'Compensator ON/Off' and the voltage supply with diagnosis Comp On present?
			YES ==>	Supply lines OK; continue with inspection point 6
			NO ==>	Check wiring harness; continue with inspection point 4
6		Check comparator	Is there a level display in the cellular phone display?
			YES ==>	Control unit and comparator OK; cellular phone not OK
			NO ==>	Replace comparator; continue with inspection point 2

Test section 4

Run test section 4 in the case of the following complaints:

No status indication of the telephone on the MMI
No display of the entered telephone number per cellular phone
No display of the entered telephone number per TeleCommander
No display of the caller/called party
No display of the phone book
No display of the LastDialList / UBAList
No representation of SMS

Inspection point	Initial state	Instruction to the technician	Question to the technician	Measures for the technician
1	No cellular phone connected, terminal R	Check LED in the status bar	Is red LED permanently on?
			YES ==>	OK; continue with inspection point 2
			NO ==>	Check telephone control unit (see test section 1) and MMI
2	Connect cellular phone, terminal R, no secure code entry	Check display ”Telephone” on the MMI / LED	Red LED flashing?
			YES ==>	OK; continue with inspection point 3
			NO ==>	Check telephone control unit (see section 1) and MMI
3	Secure code entry	Check red LED	Does the red LED go out?
			YES ==>	OK; continue with inspection point 4
			NO ==>	Check telephone control unit (see section 1) and MMI
4	Setting up call	Check green LED	Is green LED permanently on? Has the call been set up?
			YES ==>	OK; continue with inspection point 5
			NO ==>	Check telephone control unit (see section 1) and MMI
5	Call being terminated	Check green LED / red LED	Does the green LED go out? Does the red LED stay off? (prerequisite: network present)
			YES ==>	OK; continue with inspection point 6
			NO ==>	Check telephone control unit (see section 1) and MMI
6	Telephone number entry via TeleCommander	Check representation of numbers entered so far	Is the sequence of numbers entered so far correctly displayed?
			YES ==>	OK; continue with inspection point 7
			NO ==>	Check telephone control unit (see section 1) and MMI
7	Telephone number entry via TeleCommander and brief pressing of CLR button	Check representation of numbers entered so far or number last entered	Is the sequence of numbers entered so far correctly displayed?
			YES ==>	OK; continue with inspection point 8
			NO ==>	Check telephone control unit (see section 1) and MMI
8	Telephone number entry via TeleCommander and long pressing of CLR button	Check deletion of all numbers entered so far	Are all numbers entered so far deleted?
			YES ==>	OK; continue with inspection point 9
			NO ==>	Check telephone control unit (see section 1) and MMI
9	Full input of telephone number and pressing the SEND button	Check green LED	Is green LED permanently on? Has the call been set up?
			YES ==>	OK; continue with inspection point 10
			NO ==>	Check telephone control unit (see section 1) and MMI
10	Call set up and brief pressing of the END button	Check green LED / red LED	Is the call terminated? Does the green LED go out? Does the red LED stay off? (prerequisite: network present)
			YES ==>	OK; continue with inspection point 11
			NO ==>	Check telephone control unit (see section 1) and MMI
11	Call terminated and long pressing of the END button	Check display ”Telephone” on the MMI, LED, cellular phone state	Does the mobile phone switch off? Does the display ”Telephone” on the MMI go out? Red LED flashing?
			YES ==>	OK; no other measures required
			NO ==>	Check telephone control unit (see section 1) and MMI