| 1 |
- Retrieve the advanced keyless system DTC using the M-MDS.
- Are there DTC displayed?
|
Yes |
Perform the applicable DTC diagnostic procedures. |
| No |
Go to the next step. |
| 2 |
- Attempt to start the engine using the key.
- Does engine start?
|
Yes |
Go to the next step. |
| No |
Go to symptom troubleshooting flow NO. 3 in 01-03 section. |
| 3 |
- Bring the transmitter (card key) inside the passenger compartment.
- Measure the voltage at the keyless control module terminal 3E (push switch) while pushing the start knob.
- Is the voltage 0 V
?
|
Yes |
Go to the next step. |
| No |
- Inspect the wiring harness between the steering lock unit and keyless control.
- If the harness is normal, replace the steering lock unit.
- If the harness is malfunctioning, repair the wiring harness.
- Then go to Step 9.
|
| 4 |
- Replace with a transmitter (card key) battery known to be good.
- Bring the transmitter (card key) inside the passenger compartment.
- Does the keyless entry system operate properly?
|
Yes |
Replace the transmitter (card key). Then go to the next step. |
| No |
Go to the next step. |
| 5 |
- Measure the voltage at the following keyless control module terminal while operating the request switch.
- Terminal 1A and 1B for exterior, RF keyless antenna
- Terminal 1C and 1D for exterior, LF keyless antenna
- Terminal 1E and 1F for exterior, rear keyless antenna
- Terminal 11 and 1J for interior, trunk keyless antenna
- Terminal 1K and 1L for interior, rear keyless antenna
- Terminal 10 and 1P for interior, instrument panel keyless antenna
- Terminal 1M and 1N for interior, middle keyless antenna
- Is the voltage within 4.0-6.0 V
?
|
Yes |
Go to Step 7. |
| No |
Inspect and repair the applicable wiring harness between the keyless antenna and the keyless control module.
If the wiring harness is okay, replace suspect keyless antenna.
Then go to Step 9. |
| 6 |
- Measure the voltage at the keyless control module terminals 3C (keyless receiver) while pressing the start knob.
- Is the voltage as above?
|
Yes |
Go to the next step. |
| No |
- Inspect the wiring harness between the keyless receiver and the keyless control module.
- If the harness is normal, replace the keyless receiver.
- If the harness is malfunctioning, repair the wiring harness.
- Then go to Step 9.
|
| 7 |
- Does the keyless indicator light turn ON when pressing the start knob?
|
Yes |
Go to Step 9. |
| No |
Go to the next step. |
| 8 |
- Measure the voltage at the keyless control module terminals 3H while pressing the start knob.
- Is the voltage as above?
|
Yes |
Go to the next step. |
| No |
- Inspect the wiring harness between the steering lock unit and the keyless control module.
- If the harness is normal, replace the keyless control module.
- If the harness is malfunctioning, repair the wiring harness.
- Then go to the next step.
|
| 9 |
- Start the engine using start knob.
- Does advanced engine start function operate properly?
|
Yes |
Troubleshooting completed. Explain repairs to the customers |
| No |
Re-inspect the malfunction symptoms, then repeat form Step 1 if malfunction recurs. |