OBD Guide
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P1E37

Auxiliary Transmission Fluid Pump Inverter High Temperature

P1E37 is an OBD-II diagnostic trouble code meaning: Auxiliary Transmission Fluid Pump Inverter High Temperature. Common causes: auxiliary pump inverter malfunction, inverter cooling problems. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Warning Light
  • Reduced transmission efficiency
  • Transmission fluid overheating
  • Unusual noises from the transmission area
  • Engine power limitation

Causes

  • Auxiliary pump inverter malfunction
  • Inverter cooling problems
  • Faulty wiring harness or connectors
  • Low transmission fluid level
  • Transmission control unit malfunction

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Inspect the pump inverter for damage
  3. Check the inverter cooling system
  4. Diagnose electrical circuits and connectors
  5. If necessary, replace the inverter or pump

Related codes

P1E36P1E38P1E39

FAQ

What does the P1E37 code mean?

P1E37 is an OBD-II diagnostic trouble code that indicates: Auxiliary Transmission Fluid Pump Inverter High Temperature

What causes a P1E37 error code?

The most common causes of P1E37 include: Auxiliary pump inverter malfunction; Inverter cooling problems; Faulty wiring harness or connectors; Low transmission fluid level.

How do I fix a P1E37 diagnostic trouble code?

To fix P1E37: Check the level and condition of the transmission fluid. Inspect the pump inverter for damage. Check the inverter cooling system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1E37?

Limited driving only, diagnose soon

How much does it cost to fix P1E37?

The estimated repair cost for P1E37 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat