P1586moderate severityPowertrain
AT/MT Codification Signal Not Plausible
on 2015 Kia Forte 1.8L I4 · FWD
What this code means
The PCM has received a transmission codification signal that does not match the expected transmission type. The signal indicating whether an automatic or manual transmission is installed is incorrect or missing.
Symptoms
- Check Engine Light
- Transmission may enter limp mode
- Incorrect shift patterns
- Engine performance may be limited
Common causes
- Incorrect PCM software for transmission type
- Wiring issue in transmission codification circuit
- Aftermarket transmission swap without PCM recoding
- PCM connector issue
- TCM programming mismatch
Diagnostic steps
- Verify PCM software matches installed transmission type
- Check transmission codification wiring
- Inspect PCM and TCM connectors
- Verify correct PCM part number for vehicle configuration
- Reprogram PCM if needed
Repair notes
Reprogram the PCM with the correct transmission configuration software.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1