P0137 on Volvo EX90
Factory diagnostic protocol and troubleshooting wire for fault code P0137 specifically for the Volvo EX90 (2024–2026, Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh)).
1. Symptoms of P0137 on Volvo EX90
When the Engine Control Module (ECM/PCM) on your Volvo EX90 (Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh)) logs fault code P0137, drivers commonly observe:
2. Most Likely Causes on Volvo EX90
Historical warranty claims and technical repair bulletins for Volvo EX90 point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Volvo EX90
Listen for exhaust ticking or black soot around flex pipe, flanges, and sensor bungs before the catalytic converter. on the Volvo EX90 equipped with Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh).
Monitor B1S2 voltage. Snap the throttle to enrich mixture; voltage should briefly spike above 0.8V. If it remains 0.0V–0.1V, sensor is defective or shorted. on the Volvo EX90 equipped with Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh).
Unplug harness, remove old sensor with 7/8 socket, install replacement sensor and plug firmly. on the Volvo EX90 equipped with Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh).
Clear DTCs and verify B1S2 holds steady between 0.45V and 0.75V during steady highway cruising. on the Volvo EX90 equipped with Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh).
Equipment for Diagnosing Volvo EX90 (P0137)
Volvo EX90 OEM Replacement Sensor
Direct-fit replacement assembly engineered to OEM tolerances for Volvo EX90.
AstroAI Auto-Ranging Digital Multimeter
Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
Other Common Fault Codes on Volvo EX90
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Volvo EX90:
4. Volvo EX90 P0137 FAQs
What causes code P0137 to trigger on a Volvo EX90?
On the Volvo EX90 (Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh)), P0137 is most frequently caused by Exhaust leak upstream of or directly at the Sensor 2 bung letting in fresh air or Faulty downstream oxygen sensor.
Where is the OBD-II port located on my Volvo EX90?
On the Volvo EX90, the 16-pin DLC diagnostic connector is located Driver footwell lower OBD interface. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my Volvo EX90 with code P0137?
Yes. Vehicle is fully drivable, but Check Engine Light will remain illuminated. Given that P0137 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.