Automatic Transmission 4AT (Diagnostics): Other Subaru Forester SG рестайлинг

PROCEDURE

DIAGNOSIS PROCEDURE

A: CHECK

Check the following items when a problem has occurred.

Note. Use copies of this page for interviewing customers.

Scheme 410

Supplemental Restraint System "Air-bag"

The airbag system wiring harness is routed near the TCM

Measurement

When measuring the voltage and resistance of the ECM, TCM or each sensor, use a tapered pin with a diameter of less than 0.64 mm (0.025 in) in order to avoid poor contact. Do not insert a pin of more than 0.65 mm (0.026 in) diameter.

BATTERY

Measure the battery voltage and specific gravity of the electrolyte.

Standard voltage: 12 V or more

Specific gravity: 1.260 or more

TRANSMISSION GROUND

Check that the ground terminal bolt is tightened securely.

Chassis side

Tightening torque: 13 N.m (1.3 kgf-m, 9.4 ft-lb)

Scheme 411

ATF LEVEL

Check that the ATF level is at the specified amount. INSPECTION Automatic Transmission Fluid. >

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FRONT DIFFERENTIAL OIL LEVEL

Check the front differential oil level is the specified amount. INSPECTION Differential Gear Oil. >

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GENERAL TOOL

GENERAL TOOL CHART

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IGNITION SWITCH SPECIFICATION

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1. Prepare the Subaru Select Monitor kit.
2. Connect the diagnosis cable to Subaru Select Monitor.
3. Insert cartridge to the Subaru Select Monitor. PREPARATION TOOL GENERAL DESCRIPTION. >
4. Connect the Subaru Select Monitor to the data link connector. Data link connector is located in the lower portion of instrument panel (on the driver's side). Connect the diagnosis cable to the data link connector. NOTE: Do not connect scan tools except for Subaru Select Monitor.
5. Turn the ignition switch ON (engine OFF) and Subaru Select Monitor switch ON.
6. On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
7. On the «System Selection Menu» display screen, select the {Transmission Control System} and press the [YES] key.
8. Press the [YES] key after the information of transmission type is displayed.
9. On the «Transmission Diagnosis» screen, select {DTC Display}, and then press the [YES] key.

Note. For details concerning the operation procedure, refer to the " SUBARU SELECT MONITOR OPERATION MANUAL ". For details concerning the diagnostic trouble codes (DTC), refer to the List of DTC. LIST OF DIAGNOSTIC TROUBLE CODES (DTC). >

READ CURRENT DATA

1. On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2. On the «System Selection Menu» display screen, select the {Transmission Control System} and press the [YES] key.
3. Press the [YES] key after the information of transmission type is displayed.
4. On the «Transmission Diagnosis» display screen, select the {Current Data Display & Save} and press the [YES] key.
5. On the «Transmission Diagnosis» display screen, select the {Data Display} and press the [YES] key.
6. Using the scroll key, scroll the display screen up or down until the desired data is shown.

1. A list of the support data is shown in the following table.

DIAGNOSIS PROCEDURE

Note. For details concerning the operation procedure, refer to the "SUBARU SELECT MONITOR OPERATION MANUAL ".

CLEAR MEMORY MODE

1. On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2. On the «System Selection Menu» display screen, select the {Transmission Control System} and press the [YES] key.
3. Press the [YES] key after the information of transmission type is displayed.
4. On the «Transmission Diagnosis» display screen, select the {Clear Memory} and press the [YES] key.
5. When "Done" is shown on the display screen, turn the Subaru Select Monitor and ignition switch OFF.

Note. If {Clear Memory 2} is selected and performed, DTC and learned control memory are cleared. If Clear Memory 2 is performed, execute the advance operation of learning control. FACILITATION OF LEARNING CONTROL OPERATION, SUBARU SELECT MONITOR . > For details concerning the operation procedure, refer to the "SUBARU SELECT MONITOR OPERATION MANUAL ".

FACILITATION OF LEARNING CONTROL

Note. When the following services are performed, or when the shifting shock is occurred in total check with vehicle driving, perform the learning with following procedures.

1. Replacement of TCM
2. Replacement of transmission assembly
3. Replacement of clutches
4. Replacement of control valve body
5. When {Clear Memory 2} is performed

1. Shift the select lever to "P" range, and apply the parking brake.
2. Lift-up the vehicle.
3. Connect the Subaru Select Monitor to the data link connector, and then turn the ignition switch ON.
4. Perform {Clear Memory 2} using the Subaru Select Monitor. CLEAR MEMORY MODE OPERATION, SUBARU SELECT MONITOR. >
5. Using the Subaru Select Monitor, check that there is no DTC displayed. READ DIAGNOSTIC TROUBLE CODE OPERATION, SUBARU SELECT MONITOR. >
6. Warm-up the engine until the ATF temperature displayed on the Subaru Select Monitor reaches 60 - 90°C (140 - 194°F). READ CURRENT DATA OPERATION, SUBARU SELECT MONITOR. >
7. Shift the select lever to "R" range.
8. Turn all switches including headlight, air conditioner, seat heater, rear defogger and etc. OFF.
9. Turn the ignition switch to OFF, and wait more than 30 seconds for the accessory to turn to OFF.
10. When "Communication Failed!" is displayed on Subaru Select Monitor, press the brake pedal fully until the learning control promotion is completed.
11. Turn the ignition switch ON.
12. Check that the Subaru Select Monitor is returned to normal operation.
13. Shift the select lever to "P" range, and then wait for more than 3 seconds.
14. Shift the select lever to "R" range, and then wait for more than 3 seconds.
15. Shift the select lever to "N" range, and then wait for more than 3 seconds.
16. Shift the select lever to "D" range, and then wait for more than 3 seconds.
17. Shift the select lever to "N" range, and then wait for more than 3 seconds.
18. Slowly depress the accelerator pedal to full throttle.
19. Slowly release the accelerator pedal completely.
20. Start the engine, and idle it.
21. Shift the select lever to "D" range.
22. Start learning control promotion. At this time, the AT OIL TEMP warning light in the combination meter will start blinking at 2 Hz. When the AT OIL TEMP warning light does not blink, turn the ignition switch OFF and repeat the procedures from step 4). When the AT OIL TEMP warning light which blinking at 2 Hz changes to blink at 0.5 Hz, learning control promotion is completed. NOTE: When blinking of AT OIL TEMP warning light changes from 2 Hz to 4 Hz during learning control promotion, repeat the procedure from step 4).
23. Shift the select lever to "N" range, and then turn the ignition switch OFF.
24. Shift the select lever to "P" range to complete the learning control promotion.

Subaru Select Monitor

Refer to Subaru Select Monitor for information on how to display a DTC. OPERATION SUBARU SELECT MONITOR. >

Note. DTC can not be read through AT OIL TEMP warning light.

Shift the select lever to "D" range, and then drive the vehicle at 60 km/h (37 MPH) for at least 10 seconds.

CHECK POWER SUPPLY AND GROUND CIRCUIT

WIRING DIAGRAM

Scheme 425

DIAGNOSIS PROCEDURE

COMMUNICATION FOR INITIALIZING IMPOSSIBLE

DIAGNOSIS

Defective harness connector

TROUBLE SYMPTOM

Subaru Select Monitor communication failure

WIRING DIAGRAM

DIAGNOSIS PROCEDURE

LIST

DIAGNOSTIC TROUBLE CODES

CHECK FWD SWITCH

DIAGNOSIS

1. LED does not come on even if FWD switch is ON.
2. FWD signal circuit is open or shorted.

WIRING DIAGRAM

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DIAGNOSIS PROCEDURE