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Home >> Mazda >> 2000 >> 626 ES V6-2.5L DOHC >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Shift Solenoid >> Testing and Inspection
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Shift Solenoid: Testing and Inspection

SOLENOID VALVES INSPECTION [GF4A-EL]





Gear Shift Pattern Under Solenoid Valve Failure

Resistance Inspection (on-vehicle)
1. Disconnect the negative battery cable.
2. Connect the SST (104 pin Breakout Box) to the PCM harness with PCM disconnected.





3. Measure the resistance between the following terminals of the SST.
- If not as specified, inspect the ground, then perform resistance inspection (OFF-vehicle)
4. Connect the negative battery cable.

Resistance Inspection (Off-Vehicle)
1. Remove the control valve body.
2. Remove the solenoid valve(s).
3. Measure the resistance of each solenoid valve individually.
- If not as specified, replace the solenoid valve.
- If the solenoid valve is okay, inspect the wiring harness. (Solenoid valve-Coupler component)





Resistance
Shift solenoid A, B, C, TCC control solenoid valve, and 3 - 2 timing solenoid valve: 11- 27 ohms





Resistance
Pressure control solenoid: 9 - 18 ohms
4. Install the solenoid valve(s).
5. Install the control valve body.

Inspection of Operation
1. Disconnect the negative battery cable.
2. Disconnect the coupler component.





3. Apply battery voltage to each terminal of A-G.
4. Verify that each control valve operates with a "click".
- If the "click" is not heard, replace the solenoid valve.

Inspection of Output Duty Pressure control solenoid
1. Connect the (+) terminal of a dwell meter to terminal 81 at the powertrain control module and the (-) terminal to a ground. Set the dwell meter selector to the 4 cylinder position.
2. Apply parking brake and use wheel chocks at the front and rear of the wheels.
3. Start the engine.
4. Depress the brake pedal firmly.
5. Shift the selector lever to D range.

Caution If the accelerator pedal is depressed for longer then 5 seconds while the brake pedal is depressed, the transaxle could be damaged. Therefore, perform Step 6 within 5 seconds of each other.

Note The dwell meter indicates the OFF duty ratio.





6. Depress the accelerator pedal slowly and verify that the duty ratio changes as shown in the graph.
- If not as specified, inspect the powertrain control module and pressure control solenoid.
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