Keyless Access System Symptom Troubleshooting - Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch: Inspection
+B_SMART, SS1(+), SS2(-), GND Circuit Inspection
Test Procedure
- Preparation
- Engine start/stop switch connector (10P): disconnected
- Body control module connector C (66P): disconnected
- Procedure
- Perform the inspection according to the following chart.
| (Disconnected) Engine start/stop switch connector (10P) female terminals | (Disconnected) Body control module connector C (66P) female terminals | ||||
| IG Mode |
|
|
Normal Conditions | ||
| +B_SMART circuit inspection | OFF | 12 V battery voltage [circuit type 1] | |||
| SS1(+) open wire inspection | OFF | There is less than 1 Ohms | |||
| SS2(-) open wire inspection | OFF | There is less than 1 Ohms | |||
| GND open wire inspection | OFF | There is less than 1 Ohms | |||
Results
- If abnormal, there is a problem in the circuit.
If the power supply inspection of the above table showed abnormally, do the additional Power Supply Inspection , to locate the failure.
+B_BACK_UP, +B_SMART, GND, PGND, PGND Circuit Inspection
Test Procedure
- Preparation
- Body control module connector A (66P): disconnected
- Body control module connector B (66P): disconnected
- Procedure
- Perform the inspection according to the following chart.
| (Disconnected) Body control module connector A (66P) female terminals |
| IG Mode |
|
Normal Conditions | ||
| +B_BACK_UP circuit inspection | OFF | 12 V battery voltage[circuit type 1] | ||
| +B_SMART circuit inspection | OFF | 12 V battery voltage[circuit type 1] | ||
| GND open wire inspection | OFF | There is less than 1 Ohms |
| (Disconnected) Body control module connector B (66P) female terminals | ||||
| IG Mode |
|
Normal Conditions | ||
| PGND open wire inspection | OFF | There is less than 1 Ohms | ||
| PGND open wire inspection | OFF | There is less than 1 Ohms |
Results
- If abnormal, there is a problem in the circuit.
If the power supply inspection of the above table showed abnormally, do the additional Power Supply Inspection , to locate the failure.
ESL_PWR [TCUWUP/ACC], IGN_TRX [IGNTRx] Circuit Inspection
Test Procedure
- Preparation
- TCM connector A (23P): disconnected
- Body control module connector C (66P): disconnected
- Procedure
- Perform the inspection according to the following chart.
| (Disconnected) TCM connector A (23P) female terminals | (Disconnected) Body control module connector C (66P) female terminals | ||||
| IG Mode |
|
|
Normal Conditions | ||
| ESL_PWR [TCUWUP/ACC] open wire inspection | OFF | There is less than 1 Ohms | |||
| IGN_TRX [IGNTRx] open wire inspection | OFF | There is less than 1 Ohms | |||
| ESL_PWR [TCUWUP/ACC] shorted to ground inspection | OFF | There is more than 1 MOhms | |||
| IGN_TRX [IGNTRx] shorted to ground inspection | OFF | There is more than 1 MOhms | |||
Results
- If abnormal, there is a problem in the circuit.
L-LINE Circuit Inspection
NOTICE:
Before disconnecting the SRS unit connector, do the 12 volt battery terminal disconnection procedure and wait for at least 3 minutes.
Test Procedure
- Preparation
- Body control module connector A (66P): disconnected
- SRS unit connector A (43P) : disconnected
- Procedure
- Perform the inspection according to the following chart.
| (Disconnected) Data link connector (DLC) (16P) female terminals | (Disconnected) Body control module connector A (66P) female terminals | ||||
| IG Mode |
|
|
Normal Conditions | ||
| L-LINE open wire inspection | OFF | There is less than 1 Ohms | |||
| L-LINE shorted to ground inspection | OFF | There is more than 1 MOhms | |||
Results
- If abnormal, there is a problem in the circuit.
Body Control Module Inspection
NOTE: Since there is no direct method to test the inspection item, troubleshooting is performed using a known-good component.
Test Procedure
- Install a known-good body control module and attempt to reproduce the failure.
Results
- If the failure is reproduced, there is a problem with other related components.
- If the symptom/DTC goes away, the body control module must be faulty.
TCM Inspection
Test Procedure
- If the other inspection item(s) indicated a normal condition, then it is determined that the remaining TCM is the cause.
Results
- There is a problem with the TCM.