P2E98

Code

Generic P — Powertrain

Charge Port Door B Position Sensor Circuit

Brand: Generic

Type: P — Powertrain

Views: UK: 22 EN: 510 RU: 14

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Page language: EN

Causes

Open or short in the charge port door B position sensor wiring
Corroded, loose, or damaged connector at the sensor or body control module (BCM)
Failed charge port door B position sensor (switch or potentiometer)
Faulty body control module or input circuit
Water intrusion, contamination, or mechanical binding of the door latch/sensor
Blown fuse or poor ground affecting the sensor circuit

Symptoms

Charge port door may not indicate open/closed state on dash or EV charging system
Charge door may fail to lock/unlock or charge initiation may be inhibited
Diagnostic trouble light or service message related to charge door
Intermittent operation of door latch or false open/closed readings
Possible inability to start charging or charge port LED showing fault

What to check

Read stored freeze-frame and live data with a scan tool; confirm P2E98 is current or historic
Visually inspect charge port door, latch, and nearby wiring for damage, corrosion, or water
Check connector at sensor for corrosion, bent pins, secure locking tab, and moisture
Verify related fuses and body harness grounds are present and secure
Back-probe the sensor connector while operating the door to observe signal changes
Wiggle harness and operate door while watching live data for intermittent faults

Signal parameters

Reference voltage: typically 5 V reference from BCM (verify with vehicle manual)
Signal voltage (closed vs open): typically near 0–0.5 V (closed) and ~4.5–5 V (open) for a switch-style sensor; or a variable 0.2–4.8 V range for analog position sensors
Ground: 0 V chassis ground return
Continuity: expected low resistance (< 5 ohms) from sensor ground to chassis ground
Open-circuit: infinite resistance between signal and reference when switch open (if switch type)

Diagnostic algorithm

Verify the code with an OEM-capable scan tool; record freeze frame and PID values and clear code to see if it returns.
Inspect the charge port door area for mechanical binding, foreign material, water entry, and physical damage to harness or latch.
With ignition on (follow manufacturer safety for EV high-voltage systems), back-probe sensor connector: confirm presence of reference voltage, signal voltage, and ground. Observe signal while opening/closing the door.
Wiggle test the harness and connector while monitoring the signal for intermittent changes; inspect for continuity breaks near hinge points.
If reference or ground is missing, trace wiring to fuse/BCM; repair any open or high-resistance ground and retest.
If signal is shorted to ground or battery, isolate section of wiring and repair short.
If wiring tests good, remove and bench-test or replace the position sensor or latch assembly per service manual.
After repair, clear codes and perform multiple open/close cycles and a drive/charge readiness check to confirm the fault does not return.
If fault persists and wiring/sensor check good, test or replace the BCM input circuit per manufacturer procedures.

Likely causes

Intermittent or broken wiring between the sensor and BCM (pin chafing at hinge area)
Connector corrosion or bent terminal at charge port door harness
Failed position switch inside the door latch assembly
Ground circuit high resistance or open
Short to battery or to ground on the signal or reference wire

Fault status

⚠️ Status

Charge Port Door B Position Sensor Circuit fault detected — signal out of range, open or short to reference/ground. May prevent correct charge port door status or charging operation.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-2 hours