P2E89 code meaning
Proximity Detection Circuit B Low
What P2E89 means
P2E89 stands for a voltage on proximity circuit B below the band the controller accepts in a state where no plug can be present. The rule for circuit A shows how this is judged: GM's Volt checks the line with the charge door closed or while driving out of Park and sets P0D58 below 4.2 V, in 2011 after 30 failures out of 50, in the 2019 tables after 240 out of 400 samples above 20 km/h, as a Type A code with MIL. Mitsubishi's 2023 Outlander PHEV sets P0D58-00 on a low input of the charger connection signal and checks the line to the PHEV-ECU for a ground short, the charging cable and even outside supply equipment. No manufacturer documents P2E89 itself. A Lear patent protects the 5 V feed of such circuits against shorts. Expect a car that believes a plug is in.
P2E89 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2E89
- Message that a charging cable is connected although none is
- Vehicle cannot be put into drive mode
- Warning lamp, depending on manufacturer the MIL
Common causes of P2E89
- Most likelyProximity line of circuit B chafed and shorted to ground
- PossibleWater or dirt in inlet B bridging the contact to earth
- PossibleDefective charging cable left in the inlet
- Less likelyInput stage in the evaluating control unit damaged
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Proximity detection bCharge inlet bWiring harness
What each part of P2E89 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 89 | The exact fault in that area. |
What to do next
- Note P2E89 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2E89
What does P2E89 mean?
P2E89 means "Proximity Detection Circuit B Low". P2E89 stands for a voltage on proximity circuit B below the band the controller accepts in a state where no plug can be present. It is a generic code, so it means the same on every make.
Is it safe to drive with P2E89?
P2E89 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will P2E89 fail an emissions test?
P2E89 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P2E89 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P2E89 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.