Articles

BMW EWS3 Electronic immobilizer control unit Pinout

by Alex Carter Mechanic Assistant

836 Electronic immobilizer control unit (EWS-3)

Number

X-pin , color

Description

X1659

13-pin, Black

Plug connector Electronic immobilizer control unit (EWS)

Pin assignments at plug connector X1659

Pin

Type

Description / Signal typeConnection / Measuring notes
1

A

Terminal 50

Starter

ETerminal 30

Ignition switch

3

Not used

a

Activation, drive-away protection

DDE control unit, DME control unit

E

Signal, ring coil ignition lock

Ring coil

E

Signal, gearshift position L2

Gear position switch

7th

Not used

8

Not used

ETerminal 31Connector terminal 31
10 EVoltage supply terminal 30

Fuse F12

11 E

Terminal R

Fuse F37

12 ESignal, ring coil ignition l ock

Ring coil

13 E / A 

K-bus signal line

Instrument cluster (IKE)

EWS-3 connection :

13 pin connector :

p.04 – DME / DDE
p.05 – coil
p.06 – + 12v (EGS) – necessary if the EWS is coded under the ACP
p.09 – GND
p.10 – + 12v (30)
p.ll – + 12v ( R)
p.12 – coil
p.13 – K-bus – when connecting “on the table”, pull up to + 12v with a resistor of 4.7-10 kOhm

Controller MC 68 NS 11 EA 9 :

p.01 – Vss GND)
p.02 – Vdd (+
5v ) p.03 – ModA
p.05 – E-clamp
p.17 – Reset
p.20 – RxD
p.21 – TxD
p.22 – ModB
p. 25 – Vss (GND)
p.26 – Vdd (+ 5v)

In -circuit programming the cutting path , connecting RxD and ELMOS .

EWS-3 BMWTNR 8.380.138 HW: 01 SW: 03

Dump:


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About Alex Carter Advanced   Mechanic Assistant

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Joined APSense since, July 23rd, 2015, From Carlifornia, United States.

Created on Jan 9th 2018 21:13. Viewed 745 times.

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In 600:0F 3F 01 02 03 OA 00 05 FF FF FF FF FF FF FF FF

B600-B60F – Fault codes

B610:FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 04 FEB61E – Fault code number

B620:

88 38 01 38 01 81 81 07 32 97 06 55 F0 00 F0 FF

B620-B62A – ID EWS

B 630FF FF 00 40 FF 0A 01 0A 0A F8 10 38 00 19 5C 24B63B-B640 – Password
B640:14 C3 04 9E AB 07 F8 F5 B2 F2 AD 47 93 64 A0 ElB641-B657 – KEY 0
B650:98 DB 41 OF EC 05 02 00 C3 04 9E 26 B6 01 DE 96B658-B66E – KEY 1

B660:

84 0E DA 6A FC 21 6D B2 0F 9A 23 6A CE FC 00 C3

B66F-B685 – KEY 2

B670:04 52 36 EB 49 88 FF 64 25 EC 66 1F 02 A3 E6 89
B680:B7 D6 E7 D9 11 00 C3 04 49 C6 D3 6D F1 8B FE 5BB686-B69C-KEY 3

B690:

18 0B 5A 66 F7 99 B5 1E 67 46 31 C7 00 02 04 EB

B69D-B6B3 – KEY 4

B6A0:8A 6F B6 38 55 OS 76 FF FF FF FF FF FF FF FF FF
B6B 0:FF FF FF FF 02 04 64 5E A 0 39 38 21 0D AE FF FF

B6B4-B6CA-KEY 5

B6C0:FF FF FF FF FF FF FF FF FF FF FF 02 04 57 9E CAB6CB-B6E1 – KEY 6
B6D0:9E 63 28 DD 3E FF FF FF FF FF FF FF FF FF FF FF
B6E0:FF FF 02 04 80 68 FOR 81 A9 F8 D6 F5 FF FF FF FFB6E2-B6F8 – KEY 7
B6F0:FF FF FF FF FF FF FF FF FF 02 04 60 F3 7E 5E 34B6F9-B70F-KEY 8
B700:91 C9 D0 FF FF FF FF FF FF FF FF FF FF FF FF FF

B710:

02 04 B4 53 00 E0 11 41 EA 60 FF FF FF FF FF FF

B710-B726 – KEY 9

B720:FF FF FF FF FF FF FF 00 01 4A 44 02 01 8C 00 00B729-B72B – Odometer 1