Mazda 3 Service Manual: Starter Cut Relay Inspection [MTX]

Mazda 3 Service Manual / Electrical / Starting, Charging / Starter Cut Relay Inspection [MTX]

Advanced Keyless Entry And Push Button Start System Only

1. Disconnect the negative battery cable.

2. Remove the following parts:

a. Front scuff plate (LH).

b. Front side trim (LH).

c. Side wall.

d. Console.

3. Set the bonnet release lever out of the way..

4. Remove the lower panel..

5. Remove the starter cut relay with the connector connected..

6. Connect the negative battery cable..

7. Measure the voltage at each terminal is as indicated in the terminal voltage tables.

If the voltage or continuity is not as specified in the terminal voltage table, inspect the parts under “Inspection item (s)”.

If the system does not work properly even though the parts or related wiring harnesses do not have any malfunction, replace the starter cut relay.

Terminal Voltage Table (Reference)


Terminal	Signal name	Connected to	Measurement condition		Voltage (V)	Inspection item (s)
A	Power supply	Starter relay	Switch the ignitions to off	Clutch pedal is not depressed	Wave pattern 1 (See Pattern 1.)	Starter relay Related wiring harnesses
			Switch the ignitions to off	Clutch pedal is depressed	Wave pattern 2 (See Pattern 2.)
			Switch the ignitions to ON	Clutch pedal is not depressed	B+
			Switch the ignitions to ON	Clutch pedal is depressed	1.0 or less	PCM Related wiring harnesses
D	Starter cut relay output signal	PCM Keyless control module	Switch the ignitions to off	Clutch pedal is not depressed	Wave pattern 2 (See Pattern 2.)	Starter cut relay Related wiring harnesses
D	Starter cut relay output signal	PCM Keyless control module	Switch the ignitions to off	Clutch pedal is depressed	1.0 or less	Starter cut relay Related wiring harnesses
H	Starter interlock switch	Starter interlock switch	Switch the ignitions to ON	Clutch pedal is not depressed	B+	Starter interlock switch Related wiring harnesses
H	Starter interlock switch	Starter interlock switch	Switch the ignitions to ON	Clutch pedal is depressed	1.0 or less	Starter interlock switch Related wiring harnesses
I	IG 1	Stop 15 A fuse	Switch the ignition to ON		B+	Stop 15 A fuse Related wiring harnesses
I	IG 1	Stop 15 A fuse	Switch the ignition to off		1.0 or less	Stop 15 A fuse Related wiring harnesses

Generated pulse (reference)

Pattern 1

Terminal: A (+) ↔ body ground (-)
Oscilloscope setting: 2 V/DIV (Y), 100 ms/DIV (X), DC range

Pattern 2

Terminal:

A (+) ↔ body ground (-)
D (+) ↔ body ground (-)

Oscilloscope setting: 2 V/DIV (Y), 100 ms/DIV (X), DC range

Refrigerant Charging

CAUTION: Do not exceed the specification when charging the system with refrigerant. Doing so will decrease the efficiency of the air conditioner or damage the refrigeration cycle parts. ...

Starter Cut Relay Removal/Installation [MTX]

Advanced Keyless Entry And Push Button Start System Only 1. Disconnect the negative battery cable.. 2. Remove the following parts: Front scuff plate (LH). Front side trim (LH). ...

Other materials:

Power Windows
The ignition must be switched ON for the power windows to operate. WARNING Make sure the opening is clear before closing a window: Closing a power window is dangerous. A person's hands, head, or even neck could be caught by the window and result in serious injury or even d ...

Non Return Valve Inspection [Mzr 2.3 Disi Turbo]
WARNING: Fuel is very flammable liquid. If fuel spills or leaks from the pressurized fuel system, it will cause serious injury or death and facility breakage. Fuel can also irritate skin and eyes. To prevent this, always complete the “Fuel Line Safety Procedure”, while referring ...

Parking Support Brake function (pedestrians rear of the vehicle)
The Subaru Solterra is equipped with a rear camera-based detection system capable of identifying pedestrians behind the vehicle while reversing. When a pedestrian is detected and the system determines that collision risk is elevated, an audible warning is issued. If the danger becomes critical ...