NO.8 DOES NOT SHIFT TO 5GR [FS5A-EL]

id050308809300

8

Does not shift to 5GR
DESCRIPTION
•  Vehicle does not upshift from 4GR to 5GR even though vehicle speed is increased.
•  Vehicle does not shift to 5GR even though the accelerator pedal is released in D range at 60 km/h {37 mph}.
POSSIBLE CAUSE
•  Basically, TCC does not operate when the fail-safe is operating. Verify the DTCs first. If the TCC operates when driving at high speeds only, the malfunction (improper adjustment) is in the TR switch circuit.
Caution
•  If the TCC is stuck, inspect it. In addition, inspect the oil cooler for foreign particles which may have mixed in with the ATF.
1.  TCC piston slippage, burnt
•  Line pressure low
•  APP sensor malfunction
•  Input/turbine speed sensor malfunction
•  VSS malfunction
•  ECT sensor malfunction
•  Sensor GND malfunction
2.  TFT sensor malfunction
•  Short or open circuit in wiring harness
•  Poor connection of connector
•  Sensor malfunction
3.  TR switch malfunction
•  Short or open circuit in wiring harness
•  Poor connection of connector
•  Sensor malfunction
•  Selector lever adjustment incorrect
•  TR switch adjustment incorrect
4.  Shift solenoid A, shift solenoid B, shift solenoid D, Shift solenoid F valve malfunction
•  Short or open circuit in wiring harness
•  Poor connection of connector
•  Solenoid valve stuck
5.  M range switch (built-in selector lever component) malfunction
6.  Control valve body malfunction
Note
•  Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FS5A-EL].) (See BASIC INSPECTION [FS5A-EL].)

Diagnostic procedure

STEP

INSPECTION

ACTION
1
Does the gear position indicator light indication correspond to the selector lever position with the ignition at the ON?
Yes
Go to the next step.
No
Perform the symptom troubleshooting “NO.27 GEAR POSITION INDICATOR LIGHT DOES NOT ILLUMINATE IN M RANGE” or “NO.28 GEAR POSITION INDICATOR LIGHT ILLUMINATE IN P, R, N POSITION AND D RANGE”.
(See NO.27 GEAR POSITION INDICATOR LIGHT DOES NOT ILLUMINATE IN M RANGE [FS5A-EL].)
(See NO.28 GEAR POSITION INDICATOR LIGHT ILLUMINATES IN P, R, N POSITION AND D RANGE [FS5A-EL].)
2
Inspect the following TCM PID values using the M-MDS:
(See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION [FS5A-EL].)
•  TFT
•  TFTV
Are the PID values normal?
Yes
Go to the next step.
No
Repair or replace any malfunctioning parts.
3
Inspect the following TCM PID values using the M-MDS:
(See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION [FS5A-EL].)
•  SSA/SS1
•  SSB/SS2
•  SSD/SS4
•  SSF_SS6
Are the PID values normal?
Yes
Overhaul the control valve body and repair or replace any malfunctioning parts.
(See ATX workshop manual [FS5A-EL].)
If any problem remains:
•  Overhaul the transaxle and repair or replace any malfunctioning parts.
(See ATX workshop manual [FS5A-EL].)
No
Go to the next step.
4
Disconnect the TCM connector.
Measure the resistance between ground terminal at the TCM connector and body ground.
Is the resistance less than 5.0 ohms?
Yes
Inspect the following PCM and TCM PID values using the M-MDS:
(See ON-BOARD DIAGNOSTIC TEST [LF, L5].)
(See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].)
(See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION [FS5A-EL].)
PCM PID
•  APP
TCM PIDs
•  TR
•  TSS
•  OSS
Repair or replace any malfunctioning parts.
(See PCM INSPECTION [LF, L5].)
(See PCM INSPECTION [MZR 2.0 DISI i-stop].)
No
Repair or replace the wiring harness for a possible open circuit.
5
•  Verify the test results.
―  If normal, return to the diagnostic index to service any additional symptoms.
―  If the malfunction remains, inspect the related Service Information and perform repair or diagnosis.
•  If the vehicle is repaired, troubleshooting is completed.
•  If the vehicle is not repaired or additional diagnostic information is not available, replace the TCM. (See TCM REMOVAL/INSTALLATION [FS5A-EL].)