No Gear Shift To 4Th Gear - Suzuki Grand Vitara Manual

Condition
↔
Poor 3 O/D shift,
excessive shock or
slippage
→
Poor 3 2 shift, excessive
shock or slippage
→
Poor 2 1 shift, excessive
shock or slippage
Non operate TCC / lock-up
system
→
Excessive "N" "D" time
lag
→
Excessive "N" "R" time
lag
Poor engine brake in
downshift to "2" range
Poor engine brake in
downshift to "L" range

No Gear Shift to 4th Gear

System Description
TCM does not shift to 5th gear under any of the following condition.
• "3" position switch signal is inputted.
• 4L/N switch is turned ON. (4L mode)
• TCM detects the following DTCs.
DTC, P0722, P0752, P0962, P0963, P0973, P0974, P0976, P0977, P1702
Troubleshooting
WARNING
!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and tester, on a level road.
Step
1 Was "A/T System Check" performed?
2 Check DTC
Is DTC, P0722, P0752, P0962, P0963, P0973, P0974,
P0976, P0977 or P1702 detected?
3 ECT check
1) Warm up engine to normal operating temperature.
2) Check ECT monitored by TCM using scan tool.
Is ECT indicated –40
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Possible cause
Faulty O/D clutch
Faulty O/D brake
Faulty direct clutch
Faulty one-way clutch No.1
Faulty second brake
Faulty one-way clutch No.1
Faulty one-way clutch No.2
Faulty torque converter
Faulty oil pump
Faulty forward clutch
Leakage from "D" range fluid pressure
circuit
Faulty oil pump
Faulty direct clutch
Faulty reverse brake
Leakage from "R" range fluid pressure
circuit
Faulty 2nd coast brake
Faulty reverse brake
Action
° °
C (–40 F)?
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Automatic Transmission/Transaxle:
Correction / Reference Item
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Overhaul or replace valve body assembly.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Overhaul or replace valve body assembly.
Inspect. If NG, replace.
Inspect. If NG, replace.
Yes
Go to Step 2.
Perform DTC Flow to
repair and retry.
Go to Step 4.
5A-43
S5JB0A5104020
No
Go to "A/T System
Check: ".
Go to Step 3.
Faulty ECT sensor, its
circuit or engine cooling
system. If OK, substitute
a known-good TCM and
recheck.