Mazda Xedos 6. Handbuch — teil 198

Electrical control

A current through the primary coil induces a
magnetic field. The moment the current is
switched of, the magnetic field suddenly
disappears. This change of magnetic field
induces an induction voltage and causes a
spark.

The amperage before switching the current off
should be high enough to create a high change
of magnetic field the moment the current is
switched off.

Therefore the current through the primary coil
is controlled electronically.

The ignition module is supplied with a current
limited circuit. Using this in combination with a
low resistance ignition coil the amperage does
not depend on the battery voltage.

During the time the current is switched off, the
voltage over the ignition module is 12 Volts.
The moment the current is switched on, the
voltage drops to 0 Volts. From this moment on
the current increases until the limiting value is
reached.

The oscilloscope images A and B gives you an
example of the primary voltage measured on
two different current limiting circuits.

By increasing the voltage over the ignition
module, the voltage over the primary coil
decreases. This causes a limited current in
oscilloscope image A.

The ignition module in oscilloscope image B
switches the current on and off to limit the
current.

Electrical diagnosis

STATIC

DYNAMIC

Start the engine and measure

To perform this measurements the
ignition should be switched on.

the primary voltage using an
oscilloscope.

Measurements:

Measure the primary and
secondary resistance of the
ignition coil.
Measure the voltage on the
positive terminal of the ignition
module.

The voltage should be equal to the
battery voltage.

result:

result: 0 V

Voltage is lower than battery
voltage.

check power supply.

disconnect positive terminal and
repeat measurement

12 V

Voltage is equal to battery

result:

check ignition module

voltage.

check primary resistance of the
ignition coil
check ignition module
check wiring between ignition
module and ignition module.

Voltage is still lower than battery

result

voltage.

check ignition lock
check wiring between ignition
lock and ignition coil

diagnosis

Mechanical

!

Not available for this subject

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Lubricants and Fluids

MAZDA - Xedos 6 - 2.0i V6 24V - KF

Engine

Motor oil API SG

Below 0 °C SAE 5W-30

Motor oil API SG

Above -25 °C SAE 10W-30

Cooling system

Coolant

All temperatures

Manual transmission

Gear oil API GL-4

All temperatures SAE 75W-90

Gear oil API GL-5

All temperatures SAE 75W-90

Gear oil API GL-4

Above 5 °C SAE 80W-90

Gear oil API GL-5

Above 5 °C SAE 80W-90

Automatic transmission

ATF Dexron II

All temperatures

ATF M-III

All temperatures

Transfer box

Gear oil API GL-5

Above -20 °C SAE 90

Gear oil API GL-5

Below -20 °C SAE 80W

Differential, rear (4x4)

Gear oil API GL-5

Above -20 °C SAE 90

Gear oil API GL-5

Below -20 °C SAE 80W

Power steering

ATF Dexron II

All temperatures

ATF M-III

All temperatures

Brakes system

Brake fluid DOT 3

All temperatures

© Copyright, Wessels + Mьller AG

26.03.2007

Timing

MAZDA - Xedos 6 - 2.0i V6 24V - KF

General

Note

Item

Always check the timing marks before timing belt removal

Removal

Note

Item

Disconnect the battery

Remove the lower and side engine covers

Remove the alternator belt

Remove the water-pump pulley

Remove the ribbed belt tensioner

Remove the power steering pump

Remove the crankshaft pulley

Support the engine

Remove the engine support

Remove both timing-belt covers

Align the timing marks

Loosen the tensioner

Remove the upper supporting wheel

Remove the timing belt

Installation

Note

Item

Press the tensioner pin slowly into the tensioner gauge

Lock the tensioner, use a locking pin

Check the timing marks