Suzuki Vitara (LY) 2016-2017 · Service Manual Diagnostic Information and Procedures

Road Test

Precautions: Precautions for Diagnosing Trouble · Precautions for Disassembly and Reassembly · Precautions for Transmission / Transaxle · General safety (00)

This test is to check if upshift, downshift and lock-up take place at specified speeds while actually driving vehicle on a level road.
WARNING:
If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.
•Select a level road with no traffic to minimize the risk of accident.
•Perform the test extremely carefully.
•Perform the road test with 2 persons, a driver and a tester.
1)Warm up engine.
2)With engine running at idle, shift select lever to D range.
3)Depress accelerator pedal gradually.
4)While driving in D range, check if gear shift and lock-up take place properly as shown in Automatic Gear Shift Table (M16A Model).
Automatic Gear Shift Table (M16A Model)
Automatic gear shift schedule is shown in the following table. Test-drive the vehicle on a level road.
1. Shift point (Euro OBD model)
  Accelerator pedal position Shift Vehicle speed (km/h (mile/h)) Remark
UP shift 100% 1st → 2nd 33 – 37 (21 – 23) D range
2nd → 3rd 73 – 77 (45 – 48) D range
3rd → 4th 133 – 137 (83 – 85) D range
4th → 5th 183 – 187 (114 – 116) D range
5th → 6th 243 – 247 (151 – 153) D range
50% 1st → 2nd 22 – 26 (14 – 16) D range
2nd → 3rd 41 – 45 (25 – 28) D range
3rd → 4th 59 – 63 (37 – 39) D range
4th → 5th 88 – 92 (55 – 57) D range
5th → 6th 143 – 147 (89 – 91) D range
20% 1st → 2nd 11 – 15 (7 – 9) D range
2nd → 3rd 22 – 26 (14 – 16) D range
3rd → 4th 34 – 38 (21 – 24) D range
4th → 5th 47 – 51 (29 – 32) D range
5th → 6th 65 – 69 (40 – 43) D range
DOWN shift 100% 6th → 5th 233 – 237 (145 – 147) D range
5th → 4th 174 – 178 (108 – 111) D range
4th → 3rd 124 – 148 (77 – 92) D range
3rd → 2nd 66 – 70 (41 – 43) D range
2nd → 1st 28 – 32 (17 – 20) D range
50% 6th → 5th 138 – 142 (86 – 88) D range
5th → 4th 93 – 97 (58 – 60) D range
4th → 3rd 60 – 64 (37 – 40) D range
3rd → 2nd 35 – 39 (22 – 24) D range
2nd → 1st 13 – 17 (8 – 11) D range
20% 6th → 5th 56 – 60 (35 – 37) D range
5th → 4th 44 – 48 (27 – 30) D range
4th → 3rd 31 – 35 (19 – 22) D range
3rd → 2nd 20 – 24 (12 – 15) D range
2nd → 1st 7 – 11 (4 – 7) D range
1. Shift point (Non-Euro OBD model)
  Accelerator pedal position Shift Vehicle speed (km/h (mile/h)) Remark
UP shift 100% 1st → 2nd 33 – 37 (21 – 23) D range
2nd → 3rd 73 – 77 (45 – 48) D range
3rd → 4th 133 – 137 (83 – 85) D range
4th → 5th 183 – 187 (114 – 116) D range
5th → 6th 243 – 247 (151 – 153) D range
50% 1st → 2nd 23 – 27 (14 – 17) D range
2nd → 3rd 48 – 52 (30 – 32) D range
3rd → 4th 71 – 75 (44 – 47) D range
4th → 5th 101 – 105 (63 – 65) D range
5th → 6th 128 – 132 (80 – 82) D range
20% 1st → 2nd 11 – 15 (7 – 9) D range
2nd → 3rd 22 – 26 (14 – 16) D range
3rd → 4th 34 – 38 (21 – 24) D range
4th → 5th 47 – 51 (29 – 32) D range
5th → 6th 65 – 69 (40 – 43) D range
DOWN shift 100% 6th → 5th 233 – 237 (145 – 147) D range
5th → 4th 174 – 178 (108 – 111) D range
4th → 3rd 124 – 148 (77 – 92) D range
3rd → 2nd 66 – 70 (41 – 43) D range
2nd → 1st 28 – 32 (17 – 20) D range
50% 6th → 5th 103 – 107 (64 – 66) D range
5th → 4th 73 – 77 (45 – 48) D range
4th → 3rd 48 – 52 (30 – 32) D range
3rd → 2nd 27 – 31 (17 – 19) D range
2nd → 1st 7 – 11 (4 – 7) D range
20% 6th → 5th 56 – 60 (35 – 37) D range
5th → 4th 44 – 48 (27 – 30) D range
4th → 3rd 31 – 35 (19 – 22) D range
3rd → 2nd 20 – 24 (12 – 15) D range
2nd → 1st 7 – 11 (4 – 7) D range
2. Lock-up point
  Lock-up clutch status Accelerator pedal position Vehicle speed (km/h (mile/h)) Remark
3rd gear Lock-up ON 100% 31 – 35 (19 – 22) D range
50% 31 – 35 (19 – 22) D range
20% 31 – 35 (19 – 22) D range
OFF 100% 25 – 29 (16 – 18) D range
50% 25 – 29 (16 – 18) D range
20% 25 – 29 (16 – 18) D range
4th gear lock-up ON 100% 38 – 42 (24 – 26) D range
50% 38 – 42 (24 – 26) D range
20% 38 – 42 (24 – 26) D range
OFF 100% 35 – 39 (22 – 24) D range
50% 35 – 39 (22 – 24) D range
20% 35 – 39 (22 – 24) D range
5th gear lock-up ON 100% 51 – 55 (32 – 34) D range
50% 51 – 55 (32 – 34) D range
20% 51 – 55 (32 – 34) D range
OFF 100% 47 – 51 (29 – 32) D range
50% 47 – 51 (29 – 32) D range
20% 47 – 51 (29 – 32) D range
6th gear lock-up ON 100% 64 – 68 (40 – 42) D range
50% 64 – 68 (40 – 42) D range
20% 64 – 68 (40 – 42) D range
OFF 100% 59 – 63 (37 – 39) D range
50% 59 – 63 (37 – 39) D range
20% 59 – 63 (37 – 39) D range
3. Slip lock-up point
  Slip lock-up clutch status Accelerator pedal position Vehicle speed (km/h (mile/h)) Remark
2nd gear Slip ON 15% 13 – 15 (8 – 9) D range
Slip OFF 15% 12 – 14 (7 – 9) D range
3rd gear Slip ON 15% 23 – 25 (14 – 16) D range
Slip OFF 15% 21 – 23 (13 – 14) D range
4th gear Slip ON 15% 35 – 37 (22 – 23) D range
Slip OFF 15% 32 – 34 (20 – 21) D range
5th gear Slip ON 15% 48 – 50 (30 – 31) D range
Slip OFF 15% 45 – 47 (28 – 29) D range
6th gear Slip ON 15% 61 – 63 (38 – 39) D range
Slip OFF 15% 57 – 59 (35 – 37) D range
NOTE:
The gear change is done at the shift point different from the above while any of the following control function is working. Bear this in mind when performing inspection.
•Cruise Shift Control (cruise control model)
Cruise Shift Control is executed by selecting appropriate gear according to requirement for retaining a constant vehicle speed or acceleration to reduce frequent up-shift and down-shift operations while cruising.
Automatic Gear Shift Table (K14C Model)
Automatic gear shift schedule is shown in the following table. Test-drive the vehicle on a level road.
1. Shift point
  Accelerator pedal position Shift Vehicle speed (km/h (mile/h)) Remark
UP shift 100% 1st → 2nd 41 – 45 (25 – 28) D range
2nd → 3rd 81 – 85 (50 – 53) D range
3rd → 4th 128 – 132 (80 – 82) D range
4th → 5th 175 – 179 (109 – 111) D range
5th → 6th 240 – 244 (149 – 152) D range
50% 1st → 2nd 19 – 23 (12 – 14) D range
2nd → 3rd 40 – 44 (25 – 27) D range
3rd → 4th 64 – 68 (40 – 42) D range
4th → 5th 84 – 88 (52 – 55) D range
5th → 6th 108 – 112 (67 – 70) D range
20% 1st → 2nd 9 – 13 (6 – 8) D range
2nd → 3rd 22 – 26 (14 – 16) D range
3rd → 4th 32 – 36 (20 – 22) D range
4th → 5th 46 – 50 (29 – 31) D range
5th → 6th 61 – 65 (38 – 40) D range
DOWN shift 100% 6th → 5th 231 – 235 (144 – 146) D range
5th → 4th 153 – 157 (95 – 98) D range
4th → 3rd 110 – 114 (68 – 71) D range
3rd → 2nd 70 – 74 (43 – 46) D range
2nd → 1st 33 – 37 (21 – 23) D range
50% 6th → 5th 86 – 90 (53 – 56) D range
5th → 4th 59 – 63 (37 – 39) D range
4th → 3rd 36 – 40 (22 – 25) D range
3rd → 2nd 23 – 27 (14 – 17) D range
2nd → 1st 8 – 12 (5 – 7) D range
20% 6th → 5th 56 – 60 (35 – 37) D range
5th → 4th 43 – 47 (27 – 29) D range
4th → 3rd 30 – 34 (19 – 21) D range
3rd → 2nd 21 – 25 (13 – 16) D range
2nd → 1st 8 – 12 (5 – 7) D range
2. Lock-up point
  Lock-up clutch status Accelerator pedal position Vehicle speed (km/h (mile/h)) Remark
2nd gear lock-up ON 100% 38 – 42 (24 – 26) D range
50% 38 – 42 (24 – 26) D range
20% 21 – 25 (13 – 16) D range
OFF 100% 16 – 18 (10 – 11) D range
50% 16 – 18 (10 – 11) D range
20% 16 – 18 (10 – 11) D range
3rd gear lock-up ON 100% 28 – 32 (17 – 20) D range
50% 28 – 32 (17 – 20) D range
20% 28 – 32 (17 – 20) D range
OFF 100% 25 – 29 (16 – 18) D range
50% 25 – 29 (16 – 18) D range
20% 25 – 29 (16 – 18) D range
4th gear lock-up ON 100% 38 – 42 (24 – 26) D range
50% 38 – 42 (24 – 26) D range
20% 38 – 42 (24 – 26) D range
OFF 100% 35 – 39 (22 – 24) D range
50% 35 – 39 (22 – 24) D range
20% 35 – 39 (22 – 24) D range
5th gear lock-up ON 100% 52 – 56 (32 – 35) D range
50% 52 – 56 (32 – 35) D range
20% 52 – 56 (32 – 35) D range
OFF 100% 47 – 51 (29 – 32) D range
50% 47 – 51 (29 – 32) D range
20% 47 – 51 (29 – 32) D range
6th gear lock-up ON 100% 66 – 70 (41 – 43) D range
50% 66 – 70 (41 – 43) D range
20% 66 – 70 (41 – 43) D range
OFF 100% 61 – 65 (38 – 40) D range
50% 61 – 65 (38 – 40) D range
20% 61 – 65 (38 – 40) D range
3. Slip lock-up point
  Slip lock-up clutch status Accelerator pedal position Vehicle speed (km/h (mile/h)) Remark
2nd gear Slip ON 15% 14 – 16 (9 – 10) D range
Slip OFF 15% 13 – 15 (8 – 9) D range
3rd gear Slip ON 15% 23 – 25 (14 – 16) D range
Slip OFF 15% 22 – 24 (14 – 15) D range
4th gear Slip ON 15% 33 – 35 (21 – 22) D range
Slip OFF 15% 29 – 31 (18 – 19) D range
5th gear Slip ON 15% 47 – 49 (29 – 30) D range
Slip OFF 15% 39 – 41 (24 – 25) D range
6th gear Slip ON 15% 62 – 64 (39 – 40) D range
Slip OFF 15% 51 – 53 (32 – 33) D range
NOTE:
The gear change is done at the shift point different from the above while any of the following control function is working. Bear this in mind when performing inspection.
•Cruise Shift Control
Cruise Shift Control is executed by selecting appropriate gear according to requirement for retaining a constant vehicle speed or acceleration to reduce frequent up-shift and down-shift operations while cruising.
Troubleshooting
Condition Possible Cause Action
Unable to run in D range
Faulty pressure control solenoid valve “A”
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty select cable
Faulty torque converter
Replace torque converter referring to A/T Assembly Reassembly.
ATF leakage
Repair or replace oil seal, O-ring and sealant referring to A/T Assembly Reassembly.
Faulty ATF cooler
Faulty valve body component
Faulty A/T assembly
Faulty ATF
Unable to run in R range
Faulty shift solenoid valve “B”
Faulty pressure control solenoid valve “D”
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty select cable
Faulty torque converter
Replace torque converter referring to A/T Assembly Reassembly.
ATF leakage
Repair or replace oil seal, O-ring and sealant referring to A/T Assembly Reassembly.
Faulty ATF cooler
Faulty valve body component
Faulty A/T assembly
Faulty ATF
Slippery acceleration and shift
Faulty engine
Faulty line pressure control solenoid valve
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty select cable
Faulty torque converter
Replace torque converter referring to A/T Assembly Reassembly.
ATF leakage
Repair or replace oil seal, O-ring and sealant referring to A/T Assembly Reassembly.
Faulty ATF cooler
Faulty valve body component
Faulty A/T assembly
Faulty ATF
N → D time-lag exceeds specification
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty select cable
ATF leakage
Repair or replace oil seal, O-ring and sealant referring to A/T Assembly Reassembly.
Faulty ATF cooler
Faulty valve body component
Faulty A/T assembly
Faulty ATF
N → R time-lag exceeds specification
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty select cable
ATF leakage
Repair or replace oil seal, O-ring and sealant referring to A/T Assembly Reassembly.
Faulty ATF cooler
Faulty valve body component
Faulty A/T assembly
Faulty ATF
Engine stall in N → D range
Faulty engine
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty line pressure control solenoid valve
Faulty TCC solenoid valve
Faulty torque converter
Replace torque converter referring to A/T Assembly Reassembly.
Faulty valve body component
Engine stall in N → R range
Faulty engine
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty line pressure control solenoid valve
Faulty torque converter
Replace torque converter referring to A/T Assembly Reassembly.
Faulty valve body component
Engine stall in deceleration
Faulty engine
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty TCC solenoid valve
Faulty torque converter
Replace torque converter referring to A/T Assembly Reassembly.
Faulty valve body component
Hard Engine starting
Faulty engine
Faulty battery voltage
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty select cable
Poor acceleration
Faulty engine
Faulty shift solenoid valve “A”
Faulty shift solenoid valve “B”
Faulty pressure control solenoid valve “A”
Faulty pressure control solenoid valve “B”
Faulty pressure control solenoid valve “C”
Faulty pressure control solenoid valve “D”
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty torque converter
Replace torque converter referring to A/T Assembly Reassembly.
Faulty valve body component
Faulty A/T assembly
Faulty ATF
1st → 2nd upshift or 2nd → 1st downshift fails
Faulty engine
Faulty battery voltage
Faulty input shaft speed sensor
Faulty output shaft speed sensor
Faulty ATF temperature sensor
Faulty shift solenoid valve “A”
Faulty shift solenoid valve “B”
Faulty pressure control solenoid valve “A”
Faulty pressure control solenoid valve “C”
Faulty pressure control solenoid valve “D”
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty valve body component
Faulty A/T assembly
Faulty ATF
2nd → 3rd upshift or 3rd → 2nd downshift fails
Faulty engine
Faulty battery voltage
Faulty input shaft speed sensor
Faulty output shaft speed sensor
Faulty ATF temperature sensor
Faulty shift solenoid valve “B”
Faulty pressure control solenoid valve “A”
Faulty pressure control solenoid valve “C”
Faulty pressure control solenoid valve “D”
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty valve body component
Faulty A/T assembly
Faulty ATF
3rd → 4th upshift or 4th → 3rd downshift fails
Faulty engine
Faulty battery voltage
Faulty input shaft speed sensor
Faulty output shaft speed sensor
Faulty ATF temperature sensor
Faulty shift solenoid valve “B”
Faulty pressure control solenoid valve “A”
Faulty pressure control solenoid valve “B”
Faulty pressure control solenoid valve “D”
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty valve body component
Faulty A/T assembly
Faulty ATF
4th → 5th upshift or 5th → 4th downshift fails
Faulty engine
Faulty battery voltage
Faulty input shaft speed sensor
Faulty output shaft speed sensor
Faulty ATF temperature sensor
Faulty pressure control solenoid valve “A”
Faulty pressure control solenoid valve “B”
Faulty pressure control solenoid valve “D”
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty valve body component
Faulty A/T assembly
Faulty ATF
5th → 6th upshift or 6th → 5th downshift fails
Faulty engine
Faulty battery voltage
Faulty input shaft speed sensor
Faulty output shaft speed sensor
Faulty ATF temperature sensor
Faulty pressure control solenoid valve “B”
Faulty pressure control solenoid valve “D”
Faulty pressure control solenoid valve “C”
Faulty TCM
Substitute a known-good TCM and recheck DTC.
Faulty valve body component
Faulty A/T assembly
Faulty ATF