Ford Falcon. Manual - part 400

419-10-28 

Body Electronics Module (BEM) 

419-10-28

DIAGNOSIS AND TESTING (Continued)

Test Step

Result / Action to Take

J2

Yes

Check radio fuse 7.5A is not blown.

Return to symptom chart.

Check backlight fuse 40A is not blown.

No

Test heater element continuity.

Check CAN communications.

Test element earth point.

Using PID BACKL_SW check status of heated backlight switch and
status of output driver when switch operated with ignition on (PID
HEAT_BCK#).

Is the backlight status available?

PINPOINT TEST K : NO WASH FUNCTION

Test Step

Result / Action to Take

K1

Yes

Ground J3/10.

Fault is in the wiring or wiper switch.

Does washer motor run?

No

Go to K2

K2

Yes

Confirm 12V is supplied to washer motor?

Go to K3

No

Check wiper fuse. If wiper fuse blown or
missing, then replace. If fuse OK then check
wiring.

K3

Yes

Using WDS control BEM washer motor output activate. PID

Return to symptom chart.

WASHPUMP#.

No

Monitor pin J3/10. Is pin 0V when output is activated and 12V

Check wiring. If wiring OK then change BEM.

otherwise?

PINPOINT TEST L : POWER WINDOWS NOT WORKING

Test Step

Result / Action to Take

L1

Yes

Connect WDS.

Return to symptom chart.

Is the status of the power window relay with the ignition turned

No

on OK?

Test for 12 v output from the power window
relay pin J2/11, check fuses.

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419-10-29 

Body Electronics Module (BEM) 

419-10-29

DIAGNOSIS AND TESTING (Continued)

PINPOINT TEST M : DOOR AJAR INPUT TEST

Test Step

Result / Action to Take

M1

Yes

Check Door ajar status with WDS (PID LR_AJAR, RR_AJAR,

Return to symptom chart.

LF_AJAR, RF_AJAR) while opening and shutting doors.

No

Does PID reflect door ajar status?

Go to M2

M2

Yes

Check voltage at following pins and compare to PIDs bits as follows:

Return to symptom chart.

J1/14 - Drivers door - RF_AJAR

No

J1/11 - Rear right - RR_AJAR

Go to M3

J1/12 - Rear left - LR_AJAR

J1/13 - Front left - LF_AJAR

Does PID status reflect voltage levels?

M3

Yes

Is wiring to relevant pins OK?

Change BEM.

No

Fix wiring.

PINPOINT TEST N : DOOR LOCK OUTPUT TEST

Test Step

Result / Action to Take

N1

Yes

Ensure fuses and wiring are not faulty.

Return to symptom chart.

Control door lock output status with WDS (PID D_LCKO#).

No

Does this reflect soldier button requested position?

Go to N2

N2

Yes

Monitor voltage level at pins J5/2, J5/1 and J3/9 while locking and

Return to symptom chart

unlocking doors with WDS.

Unlock all doors: J5/2 = 12V, J5/1 = 0V, J3/9 =0V. Note that 12V

No

will only be supplied for 800ms.

If fuses and wiring and motors have been
checked to be OK then replace the BEM.

Lock all doors:J5/2 = 12V, J5/1 = 0V, J3/9 =0V. Note that 12V
will only be supplied for 800ms.

Are voltage levels as expected?

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419-10-30 

Body Electronics Module (BEM) 

419-10-30

GENERAL PROCEDURES

6.  To exit at any time turn the ignition off for longer

Remote Key Teaching

than 10 seconds.

7.  Next perform a parameter reset to reteach the

1.  Have all remote keys to be taught to the system

PCM ID to the BEM.

available for this session.

2.  Turn the ignition switch to the accessories

Customer DST Ignition Key Teach

position, within 5 seconds, press the demist

button 3 times, teach mode is acknowledged by

NOTE: PCM ID is not disturbed in this teach mode.

the door locks changing state. i.e. lock to unlock

1.  The customer must have 2 valid keys that are

or unlock to lock. When teach mode is entered all

recognised by the BEM.

remote key codes stored in memory will be

2.  It is recommended that the customer sit in the

erased.

vehicle with the doors closed.

3.  Once key teach mode has been entered,

3.  Place the first key in the ignition and turn to

immediately press any button on the remote key.

accessories position turn to off and remove key.

If the BEM learns the key, the doors locks will

change state.

4.  Within 5 seconds place the second key into the

ignition and turn to the ignition position. At this

4.  Select the next remote key to be taught, again

point the door locks will state to indicate learn

press any button, and wait for the doors locks to

mode is entered.

change state. Repeat this procedure until all keys

are taught (up to 8 keys may be taught).

5.  To teach a new key insert the new key within 5

seconds and turn to the ignition position, if

NOTE: High series seat memory data is only

successful an acknowledgment will be received.

designed to work on two remote keys.

5.  To exit mode, turn key to off or ignition on. The

Lost Keys

door locks will cycle to indicate the mode has

NOTE: It is recommended that the vehicle be taken to

been terminated. If the ignition key is moved from

the dealer if keys are lost. The lost keys can be

the accessories position during key teach the

erased from the BEM and new keys taught.

session will be terminated.

Receiver Resynchronization

Customer Key Erasure

1.  If a remote key is out of synchronization it may be NOTE: This procedure can only be used if more than

resynchronized by transmitting with a valid key to

2 keys have been programmed to the BEM.

the BEM then within 30 seconds transmit with the

NOTE: The two keys used to enter teach mode will

key to be resynchronized.

not be erased.

Dealer DST Ignition Key Teach Mode

1.  Enter Customer key teach mode and when

acknowledgment is received.

NOTE: This mode is used by dealers to teach DST

keys to new P & BEM or for general DST key erasing 2.  Place the second key used to enter teach mode in

and teaching. Entering Dealer key teach mode will

the ignition lock and turn to the ignition on

also erase the PCM ID in the BEM. On completion of

position, then off and remove, followed by the first

the key teach the PCM will be prompted to perform a

key which must also be turned to the ignition on

parameter reset. It is recommended that the dealer be

position then removed. The BEM will perform two

seated in the vehicle with the doors closed.

acknowledgments.

3.  All other keys are erased. Leaving the ignition off

1.  Starting with the key in the ignition position, turn

for longer than 10 seconds will exit the mode and

the ignition to the off position.

an acknowledgment will be received.

2.  Within 2 minutes of turning the key to the off

position enter dealer key teach mode using the

PCM Parameter Reset

WDS.

NOTE: Parameter reset is used whenever a BEM or

3.  When the dealer key teach mode is entered the

PCM is replaced or Dealer key teach is used. The

PCM ID is erased, an acknowledgment will be

WDS Diagnostic tool is used to perform this function.

received. Place the first DST ignition key to be

taught in the ignition switch and turn to ignition on, See also Changing a BEM.

an acknowledgement will be received if teach is

Cabin Temperature Sensor Calibration

successful.

Factor

4.  Turn the key to off and remove the DST key.
5.  Place the next key in the ignition and turn to on,

1.  Whenever a cabin Temperature sensor, ICC or

when the second key is taught 2

BEM is replaced the CTS calibration factor needs

acknowledgments will be received and so on. Up

to be taught to the BEM.

to 8 keys may be taught in this way.

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419-10-31 

Body Electronics Module (BEM) 

419-10-31

GENERAL PROCEDURES (Continued)

2.  The CTS mounted on the ICC has a barcode

sticker attached to it which has the letters CTS

followed by the calibration factor. This calibration

number should be loaded to the BEM using a

WDS service tool. If the sticker is missing then

ring ’OASIS’ hotline.

3.  If a BEM is being replaced, the CTS calibration

factor can be read from the original BEM by the

WDS. Select "Module Programming" and

"Programmable Parameters" - "Climate Control".

It can then be automatically down loaded into the

new BEM using "Module Installation" - "BEM" or

manually by entering "Module Programming" and

"Programmable Parameters" - "Climate Control"

and selecting the correct value.

Changing BEM

Whenever a BEM is to be replaced the following steps

need to be done. Read and record the following

values.
1.  Cabin Temperature Sensor Calibration Factor

(high series vehicle)

2. Body 

Type

3.  Battery saver/ interior lamp operation

(police/taxi/normal/etc)

4.  Twilight settings (high series vehicle)
When the new BEM is installed using WDS and

"Module Installation" the above setting along with

stored remote pad values should be automatically

entered into the new BEM.
If the data is unable to be recovered from the existing

BEM then the data and values will need to be

manually entered.
In a separate operation WDS will be required to teach

a minimum of two ignition keys to the new BEM and a

parameter reset before the vehicle can be started.

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