[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
42 -BODY > 42B-KEYLESS OPERATION SYSTEM (KOS) > TROUBLESHOOTING > SYMPTOM PROCEDURES > Vehicle power cannot be turned OFF when the shift position is in "P." (Power supply mode ON to ACC is possible)
Inspection Procedure 15: Vehicle power cannot be turned "OFF" when the shift position is in P (Power supply mode "ON" to "ACC" is possible). <CVT>
 
 
cautionBefore replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
 
 
 
 
COMMENTS ON TROUBLE SYMPTOM
When the shift position is judged to be in the P position based on the input of P range detection switch, KOS&OSS-ECU can turn "OFF" the vehicle power supply. If the vehicle power cannot be turned OFF (power supply mode "ON" to "ACC" is possible) when the shift is in P position, the P range detection switch or KOS&OSS-ECU may have a problem.
If you cannot turn off the power supply, you may turn it off by an emergency stop of engine switch while keeping your foot on the brake pedal. The emergency stop of engine switch is pushing the engine switch 3 times in one second. If you cannot turn off the power supply, the door entry function or keyless entry function will not work. If the battery has the voltage greater than or equal to the predetermined voltage, the emergency key may lock each door and the tailgate. Pay attention to this case because the steering lock may not be locked.
When leaving the vehicle, move the shift lever to the P-position, and apply the parking brake surely.
 
 
PROBABLE CAUSES
  • Damaged wiring harness or connector (short to earth in PDSW line)
  • Malfunction of selector lever assembly (ON seizure of P range detection switch)
  • Malfunction of KOS&OSS-ECU
 
 
DIAGNOSIS PROCEDURE
STEP 1. Battery check
Perform the battery test to check the battery status (Refer to GROUP 54A - Battery ).
Is the check result normal?
Go to Step 2.
Perform inspection procedure 18: Vehicle power cannot be turned "OFF" (Refer to ).
 
STEP 2. M.U.T.-IIISE diagnosis code
Check if the diagnosis code is set in the KOS&OSS-ECU.
Is the diagnosis code set?
Refer to diagnosis code chart .
Go to Step 3.
 
STEP 3. Check of short to earth in PDSW line between selector lever assembly connector and KOS&OSS-ECU connector.
noteBecause the conformity cannot be determined even when the digital tester is used to measure the voltage of PDSW line between the selector lever assembly connector and KOS&OSS-ECU connector, be sure to use the oscilloscope (Outputs the sawtooth waveform of 0 to 5 V with intervals of 10 ms.).
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
 
STEP 4. Check of selector lever assembly (P range detection switch).
Disconnect the selector lever assembly connector, and check the continuity at the equipment side.
 
Operation stateTerminal No.Normal conditions
Selector lever: P position4 - 6No continuity
Selector lever: Other than P positionContinuity exists (2 Ω or less)
Is the check result normal?
Go to Step 5.
Replace the selector lever assembly (Refer to GROUP 23A - Transmission Control ).
 
STEP 5. M.U.T.-IIISE data list
Check the KOS&OSS-ECU data list.
  • Operate the selector lever.
 
Item No.Check itemOperation stateDisplay
7P position detect switchSelector lever: P positionP
Selector lever: Other than P positionExcept P
OK: Operation state and data list display agree with each other.
Is the check result normal?
Perform inspection procedure 18: Vehicle power cannot be turned "OFF" (Refer to ).
Replace the KOS&OSS-ECU and register the ID codes (Refer to ).