P2D37

Code

Generic P — Powertrain

Hybrid/EV Battery Inductive Charger Input Circuit Range/Performance

Brand: Generic

Type: P — Powertrain

Views: UK: 20 EN: 25 RU: 23

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Misaligned charging pad or vehicle coupling coil
Damaged or shorted primary/secondary charging coil
High resistance or open circuit in coil wiring or connectors
Faulty charging module / power electronics
Incorrect PWM drive frequency or duty cycle from charger
Foreign object (metal) detected between coils (FOD)

Symptoms

Charging rate reduced or not available on inductive charger
Charging starts then stops or is intermittent
Charge warning or fault indicator illuminated
Longer than expected charge times
Vehicle displays charger error or prompts to reposition vehicle

What to check

Confirm DTC P2D37 is current and review freeze frame/live data
Verify vehicle and wireless pad alignment and remove any foreign objects
Visual inspection of coil pad, wiring harnesses, connectors and shielding
Check for corrosion, pin damage, or water ingress at connectors
Measure coil resistance and compare to specification
Check supply voltage and ground at charger module with ignition on

Signal parameters

Primary coil drive voltage (V) — expected range per manufacturer
Primary coil drive current (A)
Drive PWM frequency (kHz)
Drive PWM duty cycle (%)
Coil DC resistance (Ohms)
Coupling efficiency / received power (W)

Diagnostic algorithm

Retrieve all related codes and freeze frame data; record symptoms and charging behavior.
Reproduce condition with inductive charger in a controlled setting; note when fault appears.
Visually inspect charging pad/coil, vehicle coupling area, harnesses and connectors for damage, contamination or debris.
Confirm correct vehicle alignment on pad and remove any detected foreign objects; retry charging to see if DTC clears.
Measure DC resistance of primary/secondary coils (power off) and compare to spec; check continuity and for shorts to ground.
With safe test setup, power charger and probe drive signals with oscilloscope to verify PWM frequency, duty cycle and amplitude match specifications.
Measure supply voltage and ground at charger module under load; watch for voltage drops or intermittent supply.
Monitor live data/CAN for charger output power, received power, FOD status and temperature faults. Check for communication errors.
If coil or pad is out of specification or physically damaged, replace coil or pad and retest.
If drive electronics are not producing correct signals or show internal faults, inspect/replace charger module or inverter power stage; check for available software updates or calibrations before replacement.
Clear codes and perform full charge cycle on inductive charger; verify DTC does not return and charging performance is within expected range.

Likely causes

Coil wiring open, shorted, or corroded connector
Pad misalignment or foreign object interfering with magnetic coupling
Failed inverter/charger control output stage driving the inductive coil
Abnormal coil resistance due to physical damage
Thermal shutdown due to overheated coil or electronics

Fault status

⚠️ Status

Inductive charger input circuit out of allowable range/performance — wireless charging limited or disabled. Inspect coil, wiring, FOD and charger electronics.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1–3 hours