GD. Checking Regina

GD. Checking Regina

GD1




Connection of measurement box
Connect measurement box and check the chassis connections according to N1-N2. N. Measurement Box, Signal Description
^ Continue with Checking the voltage supply GD2.

GD2




Checking the voltage supply
- Connect the control unit to the measurement box.
- Insert fuse no.1.
- Ignition on.
Connect the voltmeter between #35 and #5 (ground).
The voltmeter should show battery voltage.
Check that there is voltage also when the starter motor operates.

If the value differs:
^ Check the wire between #35 and the ignition lock via fuse 1 for breakage according to CD. CD. Checking of Wiring

If the value is OK:
^ Checking the engine speed signal from Rex-I GD3.

GD3




Checking the engine speed signal from Rex-I
Connect a voltmeter between #1 and #5 (ground).
- Operate the starter motor.
The voltmeter should show 7-8 volts.

If the value is correct:
^ Checking the injector circuit GD4.

If the value differs:
^ Check the wire between Regina and Rex-I #17 for breakage according to CD. CD. Checking of Wiring

GD4




Checking the injector circuit
- Ignition on.
Connect a voltmeter between #1 and #17 (power ground).
The voltmeter should show battery voltage.

If the value differs:
^ Check the wires leading to the injectors for breakage or short circuit to ground according to CD. CD. Checking of Wiring




Connect a voltmeter between #16 and #35 (battery voltage).
- Operate the starter motor.
The voltmeter should show 300-500 mV.

If the value differs:
^ Test with a new control unit