K2–192
TROUBLESHOOTING
NO.8 DOES NOT SHIFT TO FIFTH GEAR (5GR)
A6E578001030211
Diagnostic procedure
8 Does not shift to fifth gear (5GR)
DESCRIPTION
• Vehicle does not upshift from 4GR to 5GR even though vehicle speed increased.
• Vehicle does not shift to 5GR even though accelerator pedal released in D range at 60 km/h {37 mph}.
POSSIBLE
CAUSE
• Basically, TCC does not operate when fail-safe is operating. Verify DTC at first. If TCC operates when
driving at high speeds only, malfunction (improper adjustment) is in the D range switch circuit or TR
switch circuit.
Note
• If the TCC or piston is stuck, inspect them. In addition, inspect the oil cooler for foreign particles
which may have mixed in with the ATF.
— TCC piston slipped, burned
• Line pressure low
• Incorrect throttle position signal
• Malfunction of ECT sensor
• Malfunction of VSS
• Malfunction of input/turbine speed sensor
• Malfunction of sensor ground
— Malfunction of TFT sensor
• Short or open circuit in wiring
• Poor connection of connector
• Malfunction of sensor
— Malfunction of TR switch
• Selector lever adjustment incorrect
• TR switch adjustment incorrect
— Malfunction of TCC solenoid valve
• Short or open circuit in wiring
• Poor connection of connector
• Solenoid valve stuck
— Malfunction of M range switch
— Malfunction of torque converter
— Malfunction of control valve body
Note
• Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1 • Turn ignition switch to ON.
• Does gear position indicator light indication
correspond to selector lever position?
Yes Go to next step.
No Go to symptom troubleshooting No.27 “Gear position
indicator light does not illuminate in M range” or No.28
“Gear position indicator light illuminates in D range or P, N,
R positions”.
2 • Drive vehicle in D range and inspect
following:
— 1–2 shift up and down
— 2–3 shift up and down
— 3–4 shift up and down
— 4–5 shift up and down
• Are all shift-up and shift-down possible?
Yes Go to next step.
No No shift at all:
• Go to symptom troubleshooting No.7 “No shifting”.
Abnormal shift:
• Go to symptom troubleshooting No.9 “Abnormal
shifting”.
3 • Stop engine.
• Inspect shift solenoid A, B, or C circuit.
• Are they okay?
Yes Go to next step.
No • Inspect for shift solenoid mechanical stuck.
(See K2–88 SOLENOID VALVE INSPECTION.)
4 • Remove torque converter.
• Inspect torque converter.
(See ATX Workshop.)
• Is torque converter okay?
Yes • Overhaul control valve body and repair or replace any
defective parts.
(See ATX Workshop Manual.)
— If problem remains, replace or overhaul transaxle and
repair or replace any defective parts.
(See K2–99 AUTOMATIC TRANSAXLE AND
TRANSFER REMOVAL/INSTALLATION.)
(See ATX Workshop Manual.)
No Replace torque converter.
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