DTC P1642
Precautions: Precautions for Diagnosing Trouble · Precautions for Immobilizer System · General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
|
P1642: Immobilizer Communication Line Error Communication error with keyless entry control module. |
•CAN communication circuit / connector
•Control module connected with CAN communication line
•ECM
•Keyless entry control module
|
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
DTC check
1)Set ignition “OFF” and leave ignition “OFF” for 5 seconds or more.
2)Set ignition “ON”
3)Recheck DTC.
Is current DTC P1642 detected?
|
Go to Step 2.
|
Check for intermittent trouble.
|
| 2 |
DTC check
1)Check DTC related to CAN communication.
Is there any CAN-DTC(s) detected?
|
Go to troubleshooting for applicable DTC.
|
Go to Step 3.
|
| 3 |
CAN communication circuit check
1)Check CAN communication circuit referring to “Troubleshooting for Communication Bus Off” in Section 10H.
•M16A model:
•D16AA model: Is check result OK?
|
Replace ECM and recheck DTC. If DTC P1642 is still detected, replace keyless entry control module and recheck DTC.
•ECM:
—M16A model:
•Keyless entry control module: —D16AA model: |
Repair or replace defective wire harness.
|