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 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.  Clutch or brake slippage, burned
•  Line pressure low
•  APP sensor malfunction
•  ECT sensor malfunction
•  MAF malfunction
•  CKP malfunction
•  VSS malfunction
•  Input/turbine speed 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 cable 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
With the ignition at the ON, does the gear position indicator light indication correspond to the selector lever position?
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 ILLUMINATE IN P, R, N POSITION AND D RANGE [FS5A-EL].)
2
Inspect the value at the following TCM PIDs 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 according to the inspection result.
3
Inspect the value at the following TCM PIDs 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 Automatic Transaxle Workshop Manual FS5A-EL.)
If any problem remains, overhaul the transaxle and repair or replace any malfunctioning parts.
(See Automatic Transaxle Workshop Manual FS5A-EL.)
No
Go to the next step.
4
Disconnect the TCM connector.
Is the resistance between the ground terminal at the TCM connector and the body ground less than 5.0 ohms?
Yes
Inspect the value at the following PCM and TCM PIDs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [MZR 1.8, MZR 2.0, MZR 2.5].)
(See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI].)
(See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION [FS5A-EL].)
PCM PIDs:
•  APP
•  ECT
•  MAF
•  RPM
TCM PIDs:
•  OSS
•  TSS
•  TR
Repair or replace any malfunctioning parts according to the inspection result.
(See PCM INSPECTION [MZR 1.8, MZR 2.0, MZR 2.5].)
(See PCM INSPECTION [MZR 2.0 DISI].)
No
Repair or replace the wiring harness for a possible open circuit.
Reconnect the TCM connector.
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.