Articles
BMW EWS3 Electronic immobilizer control unit Pinout
by Alex Carter Mechanic Assistant836 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 type | Connection / Measuring notes |
| 1 | A | Terminal 50 | Starter |
| 2 E | Terminal 30 | Ignition switch | |
| 3 | Not used | ||
| 4 a | Activation, drive-away protection | DDE control unit, DME control unit | |
| 5 E | Signal, ring coil ignition lock | Ring coil | |
| 6 E | Signal, gearshift position L2 | Gear position switch | |
| 7th | Not used | ||
| 8 | Not used | ||
| 9 E | Terminal 31 | Connector terminal 31 | |
| 10 E | Voltage supply terminal 30 | Fuse F12 | |
| 11 E | Terminal R | Fuse F37 | |
| 12 E | Signal, 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:
| 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 FE | B61E – 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 630 | FF FF 00 40 FF 0A 01 0A 0A F8 10 38 00 19 5C 24 | B63B-B640 – Password |
| B640: | 14 C3 04 9E AB 07 F8 F5 B2 F2 AD 47 93 64 A0 El | B641-B657 – KEY 0 |
| B650: | 98 DB 41 OF EC 05 02 00 C3 04 9E 26 B6 01 DE 96 | B658-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 5B | B686-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 CA | B6CB-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 FF | B6E2-B6F8 – KEY 7 |
| B6F0: | FF FF FF FF FF FF FF FF FF 02 04 60 F3 7E 5E 34 | B6F9-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 00 | B729-B72B – Odometer 1 |
