Mazda Xedos 6. Handbuch - teil 179

Checking wave form - rear - 

Fig. 10

Technical Data

Terminals Wheel speed sensor

2R & 2Q

Left hand

2S & 2T

Right hand

Ensure ignition switched OFF.
Raise vehicle.
Disconnect ECU multi-plugs.
Connect breakout box to 18-pin harness multi-plug.
Connect oscilloscope between breakout box terminals.
Turn road wheel at approximately 60 rpm.
Check wave form of wheel speed sensor.
If wave form not as specified:
Disconnect relevant wheel speed sensor multi-plug.
Turn road wheel at approximately 60 rpm.
Check wave form between wheel speed sensor terminals.
If wave form as specified: Check wiring.
If wave form not as specified: Suspect faulty wheel speed sensor.
Repeat test for other wheel speed sensor.

Relay module

NOTE: Relay module incorporates system relay and pump motor relay.

Checking supply voltage - 

Fig. 11

Technical Data

Terminals Condition

Voltage

b & earth

Ignition OFF Battery voltage

d & earth

Ignition ON

Battery voltage

Ensure ignition switched OFF.
Remove relay module.
Check voltage between relay module base terminal and earth.
Switch ignition ON.
Check voltage between relay module base terminal and earth.
If voltage not as specified: Check wiring and fuses.

Checking earth connection - 

Fig. 11

Technical Data

Terminals Resistance

a & earth

Zero

Ensure ignition switched OFF.
Remove relay module.
Check resistance between relay module base terminal and earth.
If resistance not as specified: Check wiring.

Checking operation - system relay contacts - 

Fig. 12

Manufacturer: Mazda

Model: Xedos 6 (CA) 2,0 

Engine code: KF

Output: 103 (140) 6000

Tuned for: R-Cat

Year: 1995-00

© Autodata Limited 2004

26.03.2007

V5.500-    

Technical Data

Terminals

Condition

Resistance

a & e

Battery voltage disconnected Zero

b & e

Battery voltage disconnected

a & e

Battery voltage connected

b & e

Battery voltage connected

Zero

Battery + to terminal d

Battery - to terminal c

NOTE: Ensure battery voltage supply is connected correctly. Otherwise relay module could be
damaged.

Ensure ignition switched OFF.
Remove relay module.
Check resistance between relay module terminals.
Connect battery voltage supply to specified relay module terminals.
Check resistance between relay module terminals.

Checking resistance - system relay contacts - 

Fig. 12

Technical Data

Terminals Resistance

c & d

60-100 

Ω

Ensure ignition switched OFF.
Remove relay module.
Check resistance between relay module terminals.

Checking operation - pump motor relay contacts - 

Fig. 13

Technical Data

Terminals

Condition

Resistance

b & f

Battery voltage disconnected

b & f

Battery voltage connected

Zero

Battery + to terminal g

Battery - to terminal h

NOTE: Ensure battery voltage supply is connected correctly. Otherwise relay module could be
damaged.

Ensure ignition switched OFF.
Remove relay module.
Check resistance between relay module terminals.
Connect battery voltage supply to specified relay module terminals.
Check resistance between relay module terminals.

Checking resistance - pump motor relay contacts - 

Fig. 13

Manufacturer: Mazda

Model: Xedos 6 (CA) 2,0 

Engine code: KF

Output: 103 (140) 6000

Tuned for: R-Cat

Year: 1995-00

© Autodata Limited 2004

26.03.2007

V5.500-    

63

Technical Data

Terminals Resistance

e & h

50-90 

Ω

Ensure ignition switched OFF.
Remove relay module.
Check resistance between relay module terminals.

Electronic control unit (ECU)

Checking supply voltage - 

Fig. 14

Technical Data

Terminals Condition

Voltage

626 2WD/Xedos 6/MX-6

1H & earth Ignition ON Battery voltage

626 4WD

2B & earth Ignition ON Battery voltage

Ensure ignition switched OFF.
Disconnect ECU multi-plugs.
Connect breakout box to harness multi-plugs.
Switch ignition ON.
Check voltage between breakout box terminal and earth.
Start engine.
Allow to idle.
Check voltage between breakout box terminal and earth.

Checking earth connection - 

Fig. 14

Technical Data

Terminals Resistance

1E & earth Zero

1F & earth Zero

Ensure ignition switched OFF.
Disconnect ECU multi-plugs.
Connect breakout box to harness multi-plugs.
Check resistance between breakout box terminals and earth.

Hydraulic modulator solenoid valves

Checking - 

Fig. 15

Manufacturer: Mazda

Model: Xedos 6 (CA) 2,0 

Engine code: KF

Output: 103 (140) 6000

Tuned for: R-Cat

Year: 1995-00

© Autodata Limited 2004

26.03.2007

V5.500-    

Technical Data

Terminals Solenoid valve Resistance

626 4WD

A & H

LH rear

3 

Ω approx.

B & G

RH rear

3 

Ω approx.

C & F

LH front

3 

Ω approx.

D & E

RH front

3 

Ω approx.

626 2WD/MX-6/Xedos 6

A & E

LH rear

3 

Ω approx.

B & F

RH rear

3 

Ω approx.

C & G

LH front

3 

Ω approx.

D & H

RH front

3 

Ω approx.

Ensure ignition switched OFF.
Disconnect hydraulic modulator 8-pin multi-plug.
Check resistance between hydraulic modulator terminals.

Checking supply voltage - 

Fig. 16

Technical Data

Terminals

Voltage

E & earth

Battery voltage

F & earth

Battery voltage

G & earth Battery voltage

H & earth Battery voltage

Ensure ignition switched OFF.
Disconnect hydraulic modulator 8-pin multi-plug.
Switch ignition ON.
Check voltage between harness multi-plug terminals and earth.

Pump motor

Checking resistance - 

Fig. 17

Technical Data

Terminals Resistance

3a & 3b

1 

Ω max.

Ensure ignition switched OFF.
Disconnect hydraulic modulator 2-pin multi-plug.
Check resistance between hydraulic modulator terminals.

Checking operation - 

Fig. 18

NOTE: DO NOT allow pump motor to run for more than 2 seconds.

Ensure ignition switched OFF.
Disconnect ECU multi-plugs.
Remove relay module.
Bridge relay module base terminals b and f with a switched lead.

Manufacturer: Mazda

Model: Xedos 6 (CA) 2,0 

Engine code: KF

Output: 103 (140) 6000

Tuned for: R-Cat

Year: 1995-00

© Autodata Limited 2004

26.03.2007

V5.500-