DTC No. | Detecting Condition | Possible Cause | Related engine |
P1677 | ICM memory error | ICM internal permanent memory (EEPROM) fault, Invalid write operation to permanent memory (EEPROM). | δ2.7 |
PROBLEM VERIFICATION
Connect the hi-scan (pro) to data link connector.
Turn the ignition switch to ON and verify the DTC "P1677" is displayed.
Erase the DTC "P1677" with the hi-scan (pro) and then monitor again.
Is the same code displayed ?
▶ Problem is intermittent and ICM memory was not cleared.
▶ Key teaching procedure
KEY TEACHING PROCEDURE
Connect the hi-can (pro) to data link connector.
Turn the ignition switch to ON and select "TEACHING" mode of immobilizer system on the hi-scan (pro).
Input the pin code which consists of 6 digits.
Because the pin code is security code, contact authorized HMC service staff to know the pin code.
If the data is correct, the key teaching is completed.
Is the key taught completely ?
▶ Check for these problems ;
Storage of invalid data in transponder.
Different kind of transponder.
Omitted transponder in the key.
▶ Check if DTC "P1677" is displayed again
CHECK IF DTC "P1677" IS DISPLAYED AGAIN
Connect the hi-scan (pro) to data link connector.
Erase the DTC with the hi-scan (pro).
Check if DTC "P1677" is displayed again.
Is the same code displayed ?
▶ Problem is intermittent and ICM memory was not cleared.
▶ If all the tests are OK, replace the ICM and recheck.
After replacing the ICM, key teaching must be done.
