Mechanical system and road test – Automatic trasmission Mazda CX-30

Mechanical test system:

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.
3. Inspect the engine oil level.
4.  Inspect the ATF level.
5.  Inspect the ignition timing.
6.  Inspect the idle speed.
7.  Verify that no DTCs are stored.

Line pressure test:
1.  Perform the mechanical system test preparation.
2.  Disconnect the negative battery terminal.
3.  Open the engine cover.
4.  Remove the left wall (front). (SKYACTIV-X 2.0).
5.  Remove the following parts as a single unit.
– Air cleaner cover.
– Air cleaner element.
– Fresh-air duct.
– Air cleaner case.
– Air hose.
– Resonance chamber (SKYACTIV-G 2.0, SKYACTIV-G 2.5)

9.  Install the following parts as a single unit.
10.  Connect the negative battery terminal.
11.  Start the engine.
12.  Warm up the engine until the ATF temperature is 60—70 °C {140—158 °F}.
13.  Shift the selector lever to the D position.
14.  Measure the line pressure while idling in D position.
15.  Measure the line pressures while idling in the M (1st gear) and R positions using the same procedure.
16.  Stop the engine.

18.  Start the engine.

19.  Measure the line pressure while stalling in D position.(1)  Strongly depress the brake pedal with the left foot.(2)  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.(3)  Slowly depress the accelerator pedal fully with the right foot all the way down.(4)  Read the line pressure quickly while stalling, and remove the right foot from the accelerator pedal.(5)  Shift the selector lever to the N position and idle for 1 min or more.

20.  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 operation 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 operation malfunction

Line pressure

Measurement conditions		Specification (kPa {kgf/cm2, 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}

21.  Stop the engine.
22.  Disconnect the negative battery terminal.
23.  Remove the following parts as a single unit.
24.  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.

27.  Install the following parts as a single unit.

•  Air cleaner cover

•  Air cleaner element

•  Fresh-air duct

•  Air cleaner case

•  Air hose

•  Resonance chamber (SKYACTIV-G 2.0, SKYACTIV-G 2.5)

28.  Install the left wall (front). (SKYACTIV-X 2.0)

29.  Close the engine cover. (SKYACTIV-X 2.0)

30.  Connect the negative battery terminal.

Stall Test

1.  Perform the mechanical system test preparation.

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.(1)  Strongly depress the brake pedal with the left foot.(2)  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.(3)  Slowly depress the accelerator pedal fully with the right foot all the way down.(4)  Read the engine speed quickly when the speed is stabilized, and remove the right foot from the accelerator pedal.(5)  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 (SKYACTIV-G 2.0, SKYACTIV-X 2.0)

Measurement conditions	Standard value (rpm)
R position	1,700—2,200
D position	1,900—2,600
M position

Stall speed (SKYACTIV-G 2.5)

Measurement conditions	Standard value (rpm)
R position	1,700—2,200
D position	2,200—2,900
M position

Stall speed (SKYACTIV-D 1.8)

Measurement conditions	Standard value (rpm)
R position	1,700—2,200
D position	2,200—3,100
M position

Time Lag Test

1.  Perform the mechanical system test preparation.

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.(1)  Shift the selector lever from the N position to the D position with the brake pedal depressed.(2)  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

Measurement conditions	Specification (s)
N to D selected	0.4—0.7
N to R selected

Road test:
Warning

•  When performing a road test, always verify the safety of the surrounding area before performing the test.

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.

2.  Inspect the engine oil level.

3.  Inspect the ATF level.

4.  Inspect the ignition timing.

5.  Inspect the idle speed.

6.  Verify that no DTCs are stored.

D Position Test

1.  Perform road test preparations.

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.(1)  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.(2)  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.(3)  Kickdown 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.(4)  Verify that the shift shock is minimal, shifting is smooth and timely, and there is no abnormal noise or slip.

Shift point (SKYACTIV-G 2.0)

Russian, Chinese specs.

Position/mode		Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
D	NORMAL	8/8	D1→D2	43—51 {27—31}
			D2→D3	75—91 {47—56}
			D3→D4	114—138 {70.9—85.7}
			D4→D5	151—183 {93.9—113.0}
			D5→D6	202—246 {126—152}
		25%(APP)	D1→D2	18—21 {12—13}
			D2→D3	28—33 {18—20}
			D3→D4	37—44 {23—27}
			D4→D5	46—55 {29—34}
			D5→D6	68—82 {43—50}
		0/8	D6→D5	40—48 {25—29}
			D5→D4	32—38 {20—23}
			D4→D3	24—29 {15—18}
			D3→D2	11—13 {6.9—8.0}
			D2→D1	5.3—6.3 {3.3—3.9}

Except Russian, Chinese specs. (2WD)

Position/mode		Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
D	NORMAL	8/8	D1→D2	49—58 {31—36}
			D2→D3	85—103 {53.0—64.0}
			D3→D4	129—157 {80.2—97.5}
			D4→D5	172—209 {107—129}
			D5→D6	230—280 {143—173}
		25%(APP)	D1→D2	19—22 {12—13}
			D2→D3	29—34 {19—21}
			D3→D4	40—48 {25—29}
			D4→D5	52—62 {33—38}
			D5→D6	65—79 {41—49}
		0/8	D6→D5	46—55 {29—34}
			D5→D4	37—44 {23—27}
			D4→D3	27—33 {17—20}
			D3→D2	13—15 {8.1—9.3}
			D2→D1	6.0—7.2 {4.0—4.4}

Except Russian specs. (AWD)

Position/mode		Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
D	NORMAL	8/8	D1→D2	46—55 {29—34}
			D2→D3	80—97 {50—60}
			D3→D4	121—147 {75.2—91.3}
			D4→D5	161—196 {101—121}
			D5→D6	216—263 {135—163}
		25%(APP)	D1→D2	18—21 {12—13}
			D2→D3	27—32 {17—19}
			D3→D4	38—45 {24—27}
			D4→D5	48—58 {30—36}
			D5→D6	61—74 {38—45}
		0/8	D6→D5	43—51 {27—31}
			D5→D4	35—41 {22—25}
			D4→D3	26—31 {17—19}
			D3→D2	12—14 {7.5—8.6}
			D2→D1	5.6—6.8 {3.5—4.2}

Shift point (SKYACTIV-G 2.5)

Position/mode		Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
D	NORMAL	8/8	D1→D2	46—55 {29—34}
			D2→D3	82—99 {51—61}
			D3→D4	124—150 {77.1—93.2}
			D4→D5	164—199 {102—123}
			D5→D6	220—267 {137—165}
		25%(APP)	D1→D2	19—22 {12—13}
			D2→D3	29—35 {19—21}
			D3→D4	39—46 {25—28}
			D4→D5	51—61 {32—37}
			D5→D6	68—82 {43—50}
		0/8	D6→D5	46—55 {29—34}
			D5→D4	37—44 {23—27}
			D4→D3	28—33 {18—20}
			D3→D2	13—15 {8.1—9.3}
			D2→D1	6.0—7.2 {4.0—4.4}

Shift point (SKYACTIV-D 1.8)

Position/mode		Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
D	NORMAL	8/8	D1→D2	33—39 {21—24}
			D2→D3	58—70 {37—43}
			D3→D4	85—103 {53.0—64.0}
			D4→D5	111—134 {69.0—83.2}
			D5→D6	138—167 {85.8—103.0}
		25%(APP)	D1→D2	13—15 {8.1—9.3}
			D2→D3	25—29 {16—18}
			D3→D4	36—42 {23—26}
			D4→D5	50—60 {32—37}
			D5→D6	58—69 {37—42}
		0/8	D6→D5	54—64 {34—39}
			D5→D4	41—49 {26—30}
			D4→D3	31—37 {20—22}
			D3→D2	12—14 {7.5—8.6}
			D2→D1	5.4—6.6 {3.4—4.1}

Shift point (SKYACTIV-X 2.0)

European (L.H.D. U.K.) specs. (2WD)

Position/mode		Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
D	NORMAL	8/8	D1→D2	46—55 {29—34}
			D2→D3	80—97 {50—60}
			D3→D4	122—148 {75.9—91.9}
			D4→D5	161—196 {101—121}
			D5→D6	216—263 {135—163}
		25%(APP)	D1→D2	17—19 {10.6—11.8}
			D2→D3	27—32 {17—19}
			D3→D4	34—41 {22—25}
			D4→D5	46—55 {29—34}
			D5→D6	57—69 {36—42}
		0/8	D6→D5	43—51 {27—31}
			D5→D4	35—41 {22—25}
			D4→D3	26—31 {17—19}
			D3→D2	12—14 {7.5—8.6}
			D2→D1	5.7—6.9 {3.6—4.2}

European (L.H.D. U.K.) specs. (AWD)

Position/mode		Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
D	NORMAL	8/8	D1→D2	43—51 {27—31}
			D2→D3	75—91 {47—56}
			D3→D4	114—138 {70.9—85.7}
			D4→D5	151—183 {93.9—113.0}
			D5→D6	202—246 {126—152}
		25%(APP)	D1→D2	16—18 {10—11}
			D2→D3	25—30 {16—18}
			D3→D4	32—38 {20—23}
			D4→D5	43—51 {27—31}
			D5→D6	54—65 {34—40}
		0/8	D6→D5	40—48 {25—29}
			D5→D4	32—38 {20—23}
			D4→D3	24—29 {15—18}
			D3→D2	11—13 {6.9—8.0}
			D2→D1	5.4—6.4 {3.4—3.9}

Australian, General (L.H.D. (Except Iran/Israel), R.H.D.), Chinese specs.

Position/mode		Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
D	NORMAL	8/8	D1→D2	43—51 {27—31}
			D2→D3	75—91 {47—56}
			D3→D4	114—138 {70.9—85.7}
			D4→D5	151—183 {93.9—113.0}
			D5→D6	202—246 {126—152}
		25%(APP)	D1→D2	16—18 {10—11}
			D2→D3	25—30 {16—18}
			D3→D4	32—38 {20—23}
			D4→D5	43—51 {27—31}
			D5→D6	54—65 {34—40}
		0/8	D6→D5	40—48 {25—29}
			D5→D4	32—38 {20—23}
			D4→D3	24—29 {15—18}
			D3→D2	11—13 {6.9—8.0}
			D2→D1	5.4—6.4 {3.4—3.9}

Iran/Israel specs.

Position/mode		Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
D	NORMAL	8/8	D1→D2	46—55 {29—34}
			D2→D3	80—97 {50—60}
			D3→D4	122—148 {75.9—91.9}
			D4→D5	161—196 {101—121}
			D5→D6	216—263 {135—163}
		25%(APP)	D1→D2	17—19 {10.6—11.8}
			D2→D3	27—32 {17—19}
			D3→D4	34—41 {22—25}
			D4→D5	46—55 {29—34}
			D5→D6	57—69 {36—42}
		0/8	D6→D5	43—51 {27—31}
			D5→D4	35—41 {22—25}
			D4→D3	26—31 {17—19}
			D3→D2	12—14 {7.5—8.6}
			D2→D1	5.7—6.9 {3.6—4.2}

M Position Test

1.  Perform road test preparations.

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.(1)  Perform the shift operation while driving and verify that the gears can be shifted.(2)  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.(3)  Release the accelerator pedal while driving and verify that the engine braking operates in all gears.(4)  Verify that the shift shock is minimal, shifting is smooth and timely, and there is no abnormal noise or slip.

Shift point (SKYACTIV-G 2.0)

Russian, Chinese specs.

Position/mode	Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
M	0/8	M6→M5	40—48 {25—29}
		M5→M4	32—38 {20—23}
		M4→M3	24—29 {15—18}
		M3→M2	11—13 {6.9—8.0}
		M2→M1	5.3—6.3 {3.3—3.9}

Except Russian, Chinese specs. (2WD)

Position/mode	Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
M	0/8	M6→M5	46—55 {29—34}
		M5→M4	37—44 {23—27}
		M4→M3	27—33 {17—20}
		M3→M2	13—15 {8.1—9.3}
		M2→M1	6.0—7.2 {4.0—4.4}

Except Russian specs. (AWD)

Position/mode	Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
M	0/8	M6→M5	43—51 {27—31}
		M5→M4	35—41 {22—25}
		M4→M3	26—31 {17—19}
		M3→M2	12—14 {7.5—8.6}
		M2→M1	5.6—6.8 {3.5—4.2}

Shift point (SKYACTIV-G 2.5)

Position/mode	Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
M	0/8	M6→M5	46—55 {29—34}
		M5→M4	37—44 {23—27}
		M4→M3	28—33 {18—20}
		M3→M2	13—15 {8.1—9.3}
		M2→M1	6.0—7.2 {4.0—4.4}

Shift point (SKYACTIV-D 1.8)

Position/mode	Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
M	0/8	M6→M5	54—64 {34—39}
		M5→M4	41—49 {26—30}
		M4→M3	31—37 {20—22}
		M3→M2	12—14 {7.5—8.6}
		M2→M1	5.4—6.6 {3.4—4.1}

Shift point (SKYACTIV-X 2.0)

European (L.H.D. U.K.) specs. (2WD)

Position/mode	Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
M	0/8	M6→M5	43—51 {27—31}
		M5→M4	35—41 {22—25}
		M4→M3	26—31 {17—19}
		M3→M2	12—14 {7.5—8.6}
		M2→M1	5.7—6.9 {3.6—4.2}

European (L.H.D. U.K.) specs. (AWD)

Position/mode	Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
M	0/8	M6→M5	40—48 {25—29}
		M5→M4	32—38 {20—23}
		M4→M3	24—29 {15—18}
		M3→M2	11—13 {6.9—8.0}
		M2→M1	5.4—6.4 {3.4—3.9}

Australian, General (L.H.D. (Except Iran/Israel), R.H.D.), Chinese specs.

Position/mode	Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
M	0/8	M6→M5	40—48 {25—29}
		M5→M4	32—38 {20—23}
		M4→M3	24—29 {15—18}
		M3→M2	11—13 {6.9—8.0}
		M2→M1	5.4—6.4 {3.4—3.9}

Iran/Israel specs.

Position/mode	Accelerator pedal depression amount	Shift	Vehicle speed (km/h {mph})
M	0/8	M6→M5	43—51 {27—31}
		M5→M4	35—41 {22—25}
		M4→M3	26—31 {17—19}
		M3→M2	12—14 {7.5—8.6}
		M2→M1	5.7—6.9 {3.6—4.2}

5.  Inspect 2nd gear fixed mode.(1)  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.(2)  Verify that the gear is fixed in 2nd gear.(3)  Release the accelerator pedal while driving and verify that the engine braking operates.(4)  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.