DTC No. | Detecting Condition | Possible Cause | Related engine |
P1694 | ECM message error | Request from ECM is invalid (Protocol layer violation- Invalid request, check sum error etc.) | β2.0 |
PROBLEM VERIFICATION
Connect the hi-scan (pro) to data link connector.
Turn the ignition switch to ON and verify the DTC "P1694" is displayed.
Erase the DTC "P1694" with the hi-scan (pro) and then monitor again.
Is the same code displayed ?
▶ Problem is intermittent and engine control module memory was not cleared.
▶ Check harness and connector between SMARTRA unit and ECM
CHECK HARNESS AND CONNECTOR BETWEEN SMARTRA UNIT AND ECM
Check for continuity between SMARTRA harness side connector terminal 5 and ECM harness side connector (C130-1) terminal 47.
Is there continuity ?
▶ Repair an open in the wire between the SMARTRA unit and the ECM.
▶ If all the tests are OK, replace the SMARTRA unit or ECM and recheck.
After replacing the ECM, key teaching must be done.
