mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 4615 > < Diagram Information and Instructions|Page 4613
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Engine Control Module: Connector Views

25 Position ECU Plug

System

KE - Jetronic

Location

-

Behind battery (260E, 300E, & 300CE/TE)

-

Kick panel passenger side (300SE, 300SEL)

Legend

1

- Main relay power (Yel)

2

- Ground (Brn)

3

- ISC Valve control (Red/Wht)

4

- NO CONNECTION

5

- Full load throttle (Gry/Yel)

6

- Speed sensor (Grn/Yel)

7

- Ground/Return for cool. sensor (Brn/Wht)

-

Coolant sensor return for MY 1988 California version

8

- Oxygen sensor input (Grn)

9

- Fuel pump relay A/T (Grn/Blu)

10 - Electro-hydraulic actuator control(Brn/Blk)
11 - Altitude sensor (Blu/Red)
12 - Electro-hydraulic actuator supply (Brn/Blk)
13 - Closed throttle (Brn/Yel)
14 - NO CONNECTION
15 - Check engine indicator (Red/Grn)
16 - Ignition switch (Vio)
17 - Air flow sensor Input (Blu/Wht)
18 - Air flow sensor reference (Blu/Grn)
19 - A/C compressor (Blu/Yel)
20 - Ground (Brn/Red)
21 - Coolant temperature sensor (Grn/Red)
22 - NO CONNECTION
23 - Diagnostic
24 - Deceleration micro-switch input (Gry/wht)
25 - TD signal (Grn/Yell)

55 Position ECU Plug

System

KE - Jetronic

Location

-

Behind battery engine compartment

Diagram Information and Instructions|Page 4615 > < Diagram Information and Instructions|Page 4613