TCM MIL Request Circuit Malfunction
2015-2021 Kia Sedona 3.3L V6
Description
The PCM has received a malfunction indicator lamp request from the Transmission Control Module. The TCM has detected a fault and is requesting the PCM to illuminate the Check Engine Light on behalf of the transmission system.
Symptoms
- Check Engine Light
- Transmission-related driveability issues
- Possible limp mode
- Harsh shifting
Common Causes
- Transmission fault stored in TCM
- TCM communication issue
- Wiring fault in MIL request circuit
- TCM malfunction
- Transmission mechanical or electrical fault
Diagnostic Steps
- Scan TCM for stored DTCs (this code is a flag, not the actual fault)
- Check TCM communication on scan tool
- Inspect MIL request circuit wiring
- Diagnose any transmission DTCs found in the TCM
- Check transmission fluid level and condition
Repair Notes
Diagnose and repair the transmission fault stored in the TCM; this code is an indicator that the real problem is in the TCM.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1693 on Other Vehicles
Common Questions
What does code P1693 mean on a 2015-2021 Kia Sedona?
P1693 stands for "TCM MIL Request Circuit Malfunction". The PCM has received a malfunction indicator lamp request from the Transmission Control Module. The TCM has detected a fault and is requesting the PCM to illuminate the Check Engine Light on behalf of the transmission system.
What are the symptoms of P1693 on a Kia Sedona?
Common symptoms of P1693 include: Check Engine Light, Transmission-related driveability issues, Possible limp mode, Harsh shifting.
What causes P1693 on a 2015-2021 Kia Sedona?
Common causes of P1693 include: Transmission fault stored in TCM, TCM communication issue, Wiring fault in MIL request circuit, TCM malfunction, Transmission mechanical or electrical fault.