Monza, Kadett and Ipanema Multec 700 GM ECU Components Pinout

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Monza, Kadett and Ipanema Multec 700 GM ECU Components Pinout

Vehicles: Monza, Kadett and Ipanema, from 91 to 96.

More ECU PINOUT Components:

ECU Modules Repair Pinpout & Components

Main components

1 Injector drive;

2 16156085 – Fuel pump relay drive;

3 34993 – Stepper motor drive;

4 Delco 196 E – 16045980 – PF relay – Injection light – Flight computer – V2 fan;

5 Processor;

6 Delco 196 E – 16045980 – V1 Fan – Heating relay collector – Ascending light – A / C relay;

7 34992 – 5V regulator;

8 NTC;

9 Processor;

10 Cristal – Clock;

11 Eprom, 27C128

Technical specifications

Special features

. Multec 700 exchanges are all the same, the difference is only in the mencal (Calibration Memory).

. Drive Beak – Commercial – IRF 540 or IRFZ34N.

Common defects

Failure in the fan relay drive;

Bad contact at the injector secondary drive terminals and pump, causing failure when moving the ECU. Necessary to resold the terminals.

Note:

For the injector to pulse, it is necessary to jump the terminals D9 and D10. Doing this, passes the earthing of the D9 to D10, that is, for the injector to work is pin D10 must be grounded.

ECUs are the same, what changes is the month.

Injector drive – 3 pins

This component is a  NPN transistor, with ferrite on the coupling (firing). This washer aims to eliminate electromagnetic interference.

Note: Note that the trigger has a range of 10 volts.

Secondary drive – Injector – Fuel pump

Processor

Mencal

Regulator 5 volts – 34992 – 15 pins

Delco 169 E 1 and 2

Delco 169 E – 1 – PF Relay – Injection light – Computer board – V2 fan – 15 pins

In this component the input (trigger) is negative and its out (out) is also negative.

Delco 169 E – 2 – V1 fan – collector heater relay

Stepper motor drive – 34993 – 9 pins

Note: When the ignition is switched off, the ECU starts the engine step, that is, to test the drive just turn on and off the ignition. And test with the oscilloscope.

Pump relay drive and Injector drive

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