P0DA1: Battery Charger A Coupler Lock Position Sensor Circuit High

P0DA1 is the high-side fault of the lock position feedback: the signal stays near its upper limit, which points to an open circuit somewhere in the sensor loop rather than a grounded wire. In the 2023 Outlander PHEV, Mitsubishi sets it in the PHEV-ECU when the supply is on and a high input from the lock position reading is seen. The test steps reveal the likely weak spots: terminal 1 of the lock actuator connector must have a ground path of no more than 2 Ω, terminal 2 must show battery voltage, the signal line to the PHEV-ECU must be intact, and the sensor in the inlet harness must read 16.8 kΩ within 5 percent. A failed ground, a broken wire or an open sensor therefore all end here. Mitsubishi's warning lamp table does not list it. The low counterpart is P0DA0.

High severity. Can I keep driving?If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

Symptoms

Charging plug lock not confirmed, DC charging refused
Charging system message, no MIL documented

Most likely causes

Ground connection of the lock actuator connector interrupted
Open signal line between inlet harness and PHEV-ECU
Position sensor in the inlet harness open or far above 16.8 kOhm
PHEV-ECU input defective

What to check, in order

Start with the simplest. You can tick off each step.

Read the codes with a hybrid-compatible scanner and write down the freeze frame data
Check the sensor's ground and make sure the signal wire is not receiving voltage from another circuit.
Make sure the battery cooling air intake is clean
Check the 12 V auxiliary battery, which can also trigger warnings
Leave any high-voltage measurements to a specialized repair shop

Good to know

Repair difficulty: medium

What each character of P0DA1 means

P: Powertrain: engine and transmission
0: Generic code: same on every make
D: Subsystem depends on the code range
A1: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0DA1?

If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

What causes code P0DA1?

The most common causes are: ground connection of the lock actuator connector interrupted; open signal line between inlet harness and PHEV-ECU; position sensor in the inlet harness open or far above 16.8 kOhm.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.