THEFT DETERRENT / KEYLESS ENTRY DIGITAL KEY SYSTEM CHECK FOR INTERMITTENT PROBLEMS
- NOTICE:
- ·
Operation history is stored in the RAM or EEPROM of the certification ECU (smart key ECU assembly). As the cause of a malfunction stored in the RAM will be cleared when the cable is disconnected from the negative (-) auxiliary battery terminal, do not disconnect the cable from the negative (-) auxiliary battery terminal before checking and recording are complete.
·If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history has been read and saved, the operation history information could be lost.
·The operation history function uses the current system time of the GTS and the time counter inside the controlling ECU to calculate the time shown in the operation history. For this reason, before reading the operation history, first make sure that the GTS system clock is accurately set to the current time.
VEHICLE CONTROL HISTORY (ROB)
- HINT:
-
The certification ECU (smart key ECU assembly) stores the vehicle control history (RoB) of the smart entry and start system and it can be read using the GTS.
Read the Vehicle Control History (RoB) according to the display on the GTS.
- Body Electrical > Entry&Start > Utility
-
Tester Display Vehicle Control History (RoB) - 50005 440 62
| Code | Item List | Item Description | Note |
|---|---|---|---|
| X0A18 | Auto Entry Wireless Operation History (Lock/Unlock) | Lock/unlock was performed by wireless operation. | - |
| X0A19 | Auto Entry Wireless Operation History (Open/Close) | Power slide door/back door was opened/closed by wireless operation. | - |
| X0A1A | Warning Operation History | Warning operation was performed by a function of the certification ECU. | - |
| X0A1B | Registration Function (Reason for Non-operation) | The reason that key registration failed. | - |
| X0A1F | Digital Key Control Change | Memory of digital key mode changing. | - |
| X0A26* | Digital Key (Inactive) | Memory of reason digital key function did not operate. | - |
- HINT:
-
Some items may not be displayed depending on the specifications of the vehicle.
*: When "Digital Key (Inactive)" is stored, perform cause analysis in accordance with the following table.
| Main Category | Sub Category | Memorized Conditions | Suspected Cause |
|---|---|---|---|
| Digital Key (Inactive) | ·
Operating Power Switch/Digital Key Boundary Area ·
Operating Entry Function/Digital Key Boundary Area |
Digital key verification performed outside operating range | Digital key could not be detected within operating range
Perform function inspection:( |
·
Operating Power Switch/Digital Key No Motion ·
Operating Entry Function/Digital Key No Motion |
Verification was performed even though no digital key movement was detected | The vibration sensor of the digital key may be disabled or malfunctioning
Perform troubleshooting for the digital key |
|
·
Operating Power Switch/Digital Key No Authority ·
Operating Entry Function/Digital Key No Authority |
An operation that was restricted by the owner key was performed using the share key | An operation that was restricted by the owner key was performed using the share key
Check the message display of the digital key The valid period of the share key has expired Check the message display of the digital key |
|
·
Operating Power Switch/Digital Key Response NG ·
Operating Entry Function/Digital Key Response NG |
Digital key verification has failed | A normal signal cannot be received from the digital key due to noise, etc.
Refer to Precautions for Inspection or Registration and perform an inspection to check if the radio wave environment is the cause of problem:( |
|
·
Operating Power Switch/Digital Key Invalid key ·
Operating Entry Function/Digital Key Invalid key |
Verification was performed when the digital key was invalid | Digital key locked as it was detected that it was left inside the vehicle
Check the message display of the digital key |
|
| Digital Key (Inactive) | ·
Operating Power Switch/Digital Key Out of Area ·
Operating Entry Function/Digital Key Out of Area |
Digital key verification performed outside operating range | Due to some influence, digital key could not be detected
Check the message display of the digital key Perform function inspection:( |
·
Operating Power Switch/Digital Key Error ·
Operating Entry Function/Digital Key Error |
BLE digital key receiver communication malfunction occurred | Communication with the BLE digital key receiver was not possible
Check for DTCs:( Perform function inspection:( |
|
·
Operating Power Switch/Digital Key Crypto Token ·
Operating Entry Function/Digital Key Crypto Token lost |
Verification of digital key was performed with no tokens left | Verification of digital key was performed with no tokens left as the number of uses was restricted by the owner key, etc.
Check the message display of the digital key |
SYMPTOM SIMULATION