Automatic Transaxle - [FW6A-EL]: Diagnosis Mazda CX-5 I

Mechanical System Test Preparation

1. Apply the parking brake firmly, and set the wheel blocks for both the front and rear wheels.
2. Inspect the engine coolant level. (See «ENGINE COOLANT LEVEL INSPECTION [SKYACTIV-G 2.0]»(ref-615406-S23530699362014051000000) ).
3. Inspect the engine oil level. (See «ENGINE OIL LEVEL INSPECTION [SKYACTIV-G 2.0]»(ref-615400-S16994500292014051000000) ).
4. Inspect the ATF level. (See «AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION [FW6A-EL, FW6AX-EL]»(ref-615418-S12734724402014051000000) ).
5. Inspect the ignition timing. (See «ENGINE TUNE-UP [SKYACTIV-G 2.0]»(ref-615399-S37949971622014051000000) ).
6. Inspect the idle speed. (See «ENGINE TUNE-UP [SKYACTIV-G 2.0]»(ref-615399-S37949971622014051000000) ).
7. Verify that no DTCs are stored.

Scheme 1081

Scheme 1082

Scheme 1083

Scheme 1084

1. Perform the mechanical system test preparation. (See «MECHANICAL SYSTEM TEST PREPARATION»(ref-615418-S16104407812014051000000) ).
2. Remove the air cleaner component. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615404-S24638618012014051000000) ).
3. Remove the harness bracket.
4. Remove the pressure detection square head plug. WARNING: Do not remove the square head plug when the ATF temperature is high. Otherwise, ATF could overflow and cause severe burns or serious injury. Remove the square head plug when the transaxle and ATF temperatures are low. (Scheme 1081): Removing Harness Bracket Using Tool NOTE: Use a suitable oil pressure gauge that corresponds to the line pressure because the maximum scale value differs depending on the oil pressure gauge.
5. Install SSTs (49 D019 908, 49 D019 909, 49 D019 910, 49 D019 911, 49 D019 913) to the line pressure detection port as shown in the figure. (Scheme 1082): Identifying Oil Pan, Dip Stick And Line Pressure Detection Port With Torque Specifications (Scheme 1083): Measuring Line Pressure Using Tool
6. Install the air cleaner component. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615404-S24638618012014051000000) ).
7. Start the engine.
8. Warm up the engine until the ATF temperature is 60-70 °C {140-158 °F}.
9. Shift the selector lever to the D position.
10. Measure the line pressure while idling in D position.
11. Measure the line pressures while idling in the M (1st gear) and R positions using the same procedure.
12. Stop the engine.
13. Change the low-pressure gauge (49 D019 908) to the high-pressure gauge (49 D019 907).
14. Start the engine.
15. Measure the line pressure while stalling in D position. Strongly depress the brake pedal with the left foot. Shift the selector lever to the D position. CAUTION: To prevent damage to the transaxle, measure the line pressure while stalling (Step (3)-( 4 )) within 5 s. Slowly depress the accelerator pedal fully with the right foot all the way down. Read the line pressure quickly while stalling, and remove the right foot from the accelerator pedal. Shift the selector lever to the N position and idle for 1 min or more.
16. Measure the line pressure while stalling for positions other than D in the same procedure. If there is any malfunction, one of the following causes may have occurred: Condition Possible cause Lower than specification Lower in R, D, and M (1GR) position Oil pump wear ATF leakage from oil pump, control valve body, and transaxle case Pressure regulator valve sticking Pressure control solenoid malfunction Solenoid reducing valve sticking Lower in D and M (1GR) position ATF leakage from low clutch hydraulic circuit Lower in R and M (1GR) position ATF leakage from low and reverse brake hydraulic circuit Lower in R position ATF leakage from R-3-5 brake hydraulic circuit Higher than specification Higher in R, D, and M (1GR) position Pressure regulator valve sticking Pressure control solenoid malfunction LINE PRESSURE SPECIFICATION Measurement conditions Specification (kPa {kgf/cm 2, psi}) Idling R position 500-700 {5.10-7.13, 72.6-101.0} D and M (1GR) position 330-470 {3.37-4.79, 47.9-68.1} Stalling R position 1,790-2,100 {18.26-21.41, 259.7-304.5} D and M (1GR) position 970-1,170 {9.90-11.93, 141.0-169.6}
17. Stop the engine.
18. Remove the air cleaner component. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615404-S24638618012014051000000) ).
19. Remove the SSTs. WARNING: If the SST is removed when the ATF temperature is high, ATF could overflow and cause severe burns or serious injury. Remove the SST when the transaxle and ATF temperatures are low.
20. Install a new square head plug. NOTE: Do not reuse the square head plug because a sealant coating has been applied. Tightening torque 7.2-9.8 N.m {74-99 kgf.cm, 64-86 in.lbf}
21. Install the harness bracket. Tightening torque 8-10 N.m {82-101 kgf.cm, 71-88 in.lbf}
22. Install the air cleaner component. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615404-S24638618012014051000000) ). (Scheme 1084): Installing Harness Bracket Using Tool

Stall Test

1. Perform the mechanical system test preparation. (See «MECHANICAL SYSTEM TEST PREPARATION»(ref-615418-S16104407812014051000000) ).
2. Apply the parking brake firmly, and set the wheel blocks for both the front and rear wheels.
3. Start the engine.
4. Measure the stall speed in the D position. Strongly depress the brake pedal with the left foot. Shift the selector lever to the D position. CAUTION: To prevent damage to the transaxle, measure the stall speed (Step (3)-( 4 )) within 5 s. Slowly depress the accelerator pedal fully with the right foot all the way down. Read the engine speed quickly when the speed is stabilized, and remove the right foot from the accelerator pedal. Shift the selector lever to the N position and idle for 1 min or more .
5. Measure the stall speed in the M (1st gear) and R positions using the same procedure. If there is any malfunction, one of the following causes may have occurred: Condition Possible cause Higher than specification Higher in R, D, and M (1GR) position Line pressure is low Oil pump wear ATF leakage from oil pump, control valve body, and transaxle case Pressure regulator valve sticking TR control valve sticking Pressure control solenoid operation malfunction Low and reverse brake slippage, and damage of one-way clutch Higher in D and M (1GR) position Low clutch slippage One-way clutch damage Higher in R position Perform road test to determine whether problem is in R-3-5 brake or low and reverse brake Engine brake operates in M (1GR) position R-3-5 brake slippage Engine braking does not operate in M (1GR) position Low and reverse brake slippage Lower than specification Lower in R, D, and M (1GR) position Engine malfunction One-way clutch slippage in torque converter STALL SPEED SPECIFICATION Measurement conditions Standard value (rpm) R position 1,700-2,200 D position 1,900-2,600 M position

Time Lag Test

1. Perform the mechanical system test preparation. (See «MECHANICAL SYSTEM TEST PREPARATION»(ref-615418-S16104407812014051000000) ).
2. Apply the parking brake firmly, and set the wheel blocks for both the front and rear wheels.
3. Start the engine.
4. Measure the time lag from the N position to the D position. Shift the selector lever from the N position to the D position with the brake pedal depressed. Measure the time until the shift shock is felt firmly after shifting.
5. Measure the time lag from the N position to the R position using the same procedure. If there is any malfunction, one of the following causes may have occurred: Condition Possible cause N to D selected Longer than specification Line pressure is low Low clutch slippage ATF leakage from low clutch hydraulic circuit ATF leakage from low and reverse brake hydraulic circuit Shift solenoid No.1 operation malfunction Shift solenoid No.4 operation malfunction Shorter than specification Line pressure is high N-D accumulator operation malfunction Shift solenoid No.1 operation malfunction Shift solenoid No.4 operation malfunction N to R selected Longer than specification Line pressure is low Low and Reverse brake slippage R-3-5 brake slippage ATF leakage from R-3-5 brake hydraulic circuit ATF leakage from low and reverse brake hydraulic circuit Shift solenoid No.3 operation malfunction Shift solenoid No.4 operation malfunction Shorter than specification Line pressure is high N-R accumulator operation malfunction Shift solenoid No.3 operation malfunction Shift solenoid No.4 operation malfunction TIME LAG SPECIFICATION Measurement conditions Specification (s) N to D selected 0.4-0.7 N to R selected

ROAD TEST [FW6A-EL, FW6AX-EL]

Note. When performing a road test requiring speeds which exceed the legal speed limit, use a dynamometer.

Road Test Preparation

1. Inspect the engine coolant level. (See «ENGINE COOLANT LEVEL INSPECTION [SKYACTIV-G 2.0]»(ref-615406-S23530699362014051000000) ).
2. Inspect the engine oil level. (See «ENGINE OIL LEVEL INSPECTION [SKYACTIV-G 2.0]»(ref-615400-S16994500292014051000000) ).
3. Inspect the ATF level. (See «AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION [FW6A-EL, FW6AX-EL]»(ref-615418-S12734724402014051000000) ).
4. Inspect the ignition timing. (See «ENGINE TUNE-UP [SKYACTIV-G 2.0]»(ref-615399-S37949971622014051000000) ).
5. Inspect the idle speed. (See «ENGINE TUNE-UP [SKYACTIV-G 2.0]»(ref-615399-S37949971622014051000000) ).
6. Verify that no DTCs are stored.

Accelerator Pedal Depressing Amount Versus Vehicle Speed Graph. Scheme 1085

D Position Test

1. Perform road test preparations. (See «ROAD TEST PREPARATION»(ref-615418-S36112649392014051000000) ).
2. Warm up the transaxle.
3. Select D position.
4. Inspect the shift point for the D position in normal mode. If there is any malfunction, refer to symptom troubleshooting and verify the malfunction symptom. Depress the accelerator pedal and start the vehicle, and verify that the gears shift from 1st to 2nd, 2nd to 3rd, 3rd to 4th, 4th to 5th, and 5th to 6th. In addition, verify that the vehicle speed corresponds to the shift point when shifting. Release the accelerator pedal while driving in 6th gear, and verify that the gears shift from 6th to 5th, 5th to 4th, 4th to 3rd, 3rd to 2nd, and 2nd to 1st. In addition, verify that the vehicle speed corresponds to the shift point when shifting. NOTE: When the accelerator pedal is fully released quickly, shifting is not performed according to the shift pattern because the gear being used may be maintained. When decelerating by strongly depressing the brake pedal, shifting is not performed according to the shift pattern because the shift-down point may be at high vehicle speed. Kick down while driving in 6th, 5th, 4th, 3rd, and 2nd gears, and verify that the gears shift from 6th to 5th, 5th to 4th, 4th to 3rd, 3rd to 2nd, and 2nd to 1st. In addition, verify that the vehicle speed limit for kicking down corresponds to the shift point. Verify that the shift shock is minimal, shifting is smooth and timely, and there is no abnormal noise or slip. SHIFT POINT SPECIFICATION Position/mode Accelerator pedal depression amount Shift Vehicle speed (km/h {mph}) Turbine rotation speed (rpm) D NORMAL 8/8 D 1 -->D 2 47-52 {30-32} 5,850-6,660 D 2 -->D 3 82-89 {51-55} 5,850-6,400 D 3 -->D 4 113-122 {71-75} 5,850-6,300 D 4 -->D 5 166-175 {103-108} 5,900-6,200 4/8 D 1 -->D 2 22-30 {14-18} 2,800-3,800 D 2 -->D 3 37-52 {23-32} 2,650-3,750 D 3 -->D 4 48-70 {30-13} 2,500-3,650 D 4 -->D 5 66-92 {41-57} 2,350-3,250 0/8 D 6 -->D 5 44-50 {28-31} 950-1,050 D 5 -->D 4 37-42 {23-26} 950-1,050 D 4 -->D 3 26-31 {17-19} 900-1,100 D 3 -->D 2 9-14 {6-8} 500-750 D 2 -->D 1 4-9 {3-5} 250-650 Kickdown (8/8) D 5 -->D 4 154-163 {96-101} 3,900-4,100 D 4 -->D 3 101-110 {63-68} 3,600-3,900 D 3 -->D 2 69-77 {43-47} 3,600-3,950 D 2 -->D 1 35-40 {22-24} 2,500-2,850

M Position Test

1. Perform road test preparations. (See «ROAD TEST PREPARATION»(ref-615418-S36112649392014051000000) ).
2. Warm up the transaxle.
3. Select the M position.
4. Inspect the shift point for the M position. If there is any malfunction, refer to symptom troubleshooting and verify the malfunction symptom. Perform the shift operation while driving and verify that the gears can be shifted. Release the accelerator pedal while driving in 6th gear, and verify that the gears shift from 6th to 5th, 5th to 4th, 4th to 3rd, 3rd to 2nd, and 2nd to 1st. In addition, verify that the vehicle speed corresponds to the shift point when shifting. Release the accelerator pedal while driving and verify that the engine braking operates in all gears. Verify that the shift shock is minimal, shifting is smooth and timely, and there is no abnormal noise or slip. SHIFT POINT SPECIFICATION Position/mode Accelerator pedal depression amount Shift Vehicle speed (km/h {mph}) Turbine rotation speed (rpm) M 0/8 M 6 -->M 5 44-50 {28-31} 950-1,050 M 5 -->M 4 37-41 {23-26} 950-1,050 M 4 -->M 3 26-31 {17-19} 900-1,100 M 3 -->M 2 9-14 {6-8} 500-750 M 2 -->M 1 4-9 {3-5} 250-650
5. Inspect 2nd gear fixed mode. While the vehicle is stopped or the vehicle speed is 10 km/h {6.2 mph} or less , operate the selector lever toward + to shift to 2nd gear. Verify that the gear is fixed in 2nd gear. Release the accelerator pedal while driving and verify that the engine braking operates. Perform the shift operation while driving and verify that the gears can be shifted.

P Position Test

1. Park the vehicle on a gentle slope and shift the selector lever to the P position.
2. Release the brake and verify that the vehicle does not move. If there is any malfunction, inspect the parking mechanism in the transaxle.

AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION [FW6A-EL, FW6AX-EL]

Scheme 1086

Scheme 1087

1. Remove the dipstick securing bolt.
2. Connect the M-MDS to the DLC-2 and display the PID TFT.
3. Warm up the engine until the ATF temperature is 50 °C {122 °F}.
4. Remove the dipstick and wipe ATF off using a nylon cloth while leaving the engine idling.
5. Insert the dipstick and pull it out again.
6. Verify that the ATF is adhering between L and F on the dipstick. (Scheme 1086): Identifying Dipstick And Securing Bolt If ATF is not adhering between L and F on the dipstick, adjust the ATF level. (See «AUTOMATIC TRANSAXLE FLUID (ATF) ADJUSTMENT [FW6A-EL, FW6AX-EL]»(ref-615418-S31075952452014051000000) ). NOTE: The ATF color is blue. Only use ATF FZ for the FW6A-EL, FW6AX-EL ATF type ATF FZ (Scheme 1087): Identifying ATF Adhering Level (H And L)
7. Insert the dipstick and install the securing bolt. Tightening torque 8-11 N.m {82-112 kgf.cm, 71-97 in.lbf}

Continuity Inspection

Note. The M position switch is built into the selector lever component.

Scheme 1088

Scheme 1089

1. Disconnect the negative battery cable. (See «NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0]»(ref-615412-S04991947062014051000000) ).
2. Remove the front console. (See «FRONT CONSOLE REMOVAL/INSTALLATION»(ref-615455-S37957878882014051000000) ).
3. Disconnect the selector lever component connector. (Scheme 1088): Identifying Selector Lever Component Connector
4. Verify that the continuity between selector lever component terminals E and J. If not as verified, replace the selector lever component. (See «AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION»(ref-615439-S02571559392014051000000) ). M POSITION SWITCH SPECIFICATION Test condition Continuity Selector lever is in the M position. Continuity Selector lever is not in the M position. No continuity (Scheme 1089): Checking Continuity Between Selector Lever Component Terminals E And J

Note. The up switch is built into the selector lever component.

Scheme 1090

Scheme 1091

1. Disconnect the negative battery cable. (See «NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0]»(ref-615412-S04991947062014051000000) ).
2. Remove the front console. (See «FRONT CONSOLE REMOVAL/INSTALLATION»(ref-615455-S37957878882014051000000) ).
3. Disconnect the selector lever component connector. (Scheme 1090): Identifying Selector Lever Component Connector
4. Verify that the continuity between selector lever component terminals C and J. If not as verified, replace the selector lever component. (See «AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION»(ref-615439-S02571559392014051000000) ). UP SWITCH SPECIFICATION Test condition Continuity Selector lever is in the M position (+) side position. Continuity Selector lever is not in the M position (+) side position. No continuity (Scheme 1091): Checking Continuity Between Selector Lever Component Terminals C And J

Note. The down switch is built into the selector lever component.

Scheme 1092

Scheme 1093

1. Disconnect the negative battery cable. (See «NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0]»(ref-615412-S04991947062014051000000) ).
2. Remove the front console. (See «FRONT CONSOLE REMOVAL/INSTALLATION»(ref-615455-S37957878882014051000000) ).
3. Disconnect the selector lever component connector. (Scheme 1092): Identifying Selector Lever Component Connector
4. Verify that the continuity between selector lever component terminals D and J. If not as verified, replace the selector lever component. (See «AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION»(ref-615439-S02571559392014051000000) ). DOWN SWITCH SPECIFICATION Test condition Continuity Selector lever is in the M position (-) side position. Continuity Selector lever is not in the M position (-) side position. No continuity (Scheme 1093): Checking Continuity Between Selector Lever Component Terminals D And J