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ECU Motronic 1.5.4 – GM

Motronic 1.5.4 – GM

Main components

1. Stepper motor.

2. Nozzles or injector, Canister

3. Protection diode

4. 5V regulator

5. Eprom.

6. Processor.

7. Multi fan drivers.

8. Coils.

And now we will describe each component and drivers by datasheet

21-pin multi drive (Injectors, Canister, Fan speed 1) - 30313 

Negative shooting and negative output.

multi drive (Injectors, Canister, Fan speed 1) - 30313
multi drive (Injectors, Canister, Fan speed 1) - 30313

Idle Corrector Drive - 7 pins

Idle Corrector Drive - 7 pins
Idle Corrector Drive - 7 pins

Ignition coil drive - 30023 - 5-pin – Vectra

Ignition coil drive - 30023 - 5-pin – Vectra
Coil A - Coil 2 and 3
Ignition coil drive - 30023 - 5-pin – Vectra


Coil B - Coil 1 and 4

Ignition coil drive - 30023 - 5-pin – Vectra

5V regulator and main relay drive - 30358 or 30284 - 15 pins.

5V regulator and main relay drive - 30358 or 30284 - 15 pins.

This component regulates the voltage 5 volts and also activates the main relay.

EGR control drive - BTS 5115 A (Blazer and S10).

The component shown controls the activation of the solenoid connected in series with the EGR hose, 8V Blazer and S10 engines only.

In 16V motors, use linear EGR with drive electrical, controlled by another drive (PWM).

EGR control drive - BTS 5115 A (Blazer and S10).
EGR control drive - BTS 5115 A (Blazer and S10).

24-pin mult drive - B 58108 or TLE 4226 G.

In this component, the drive is made by negative and the output is positive 5V.

24-pin mult drive - B 58108 or TLE 4226 G.

Note: If one of the above diodes shorted the controlled component will be connected directly.This happens due to the diodes having one of the terminals connected to the ground.

24-pin mult drive - B 58108 or TLE 4226 G.

Multi Drive 24-pin A (Pump relay, injection light, ignition drive)

Multi Drive 24-pin A (Pump relay, injection light, ignition drive)

24-pin Multi Drive (Fan speed 2, Relay A / C, EGR control)

24-pin Multi Drive (Fan speed 2, Relay A / C, EGR control)


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