OBD Guide
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U2615

Auxiliary Transmission Fluid Pump Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2

U2615 is an OBD-II diagnostic trouble code meaning: Auxiliary Transmission Fluid Pump Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2. Common causes: open or short circuit in the wiring harness between the modules, atf auxiliary pump control module malfunction. Estimated repair cost: $56–222.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • Check Engine light comes on
  • The transmission may go into emergency mode
  • Gear shifting problems
  • Reduced performance of the hybrid system
  • Possible noise from the transmission fluid pump

Causes

  • Open or short circuit in the wiring harness between the modules
  • ATF auxiliary pump control module malfunction
  • Problems with power supply or grounding of modules
  • Malfunction of the second transmission control module (PCM2)
  • Problems with the CAN bus

How to Fix

  1. Check the integrity and connections of the wiring harness between the modules
  2. Check power and grounding of both modules
  3. Scan the CAN bus for communication errors
  4. Diagnose the ATF pump control module
  5. If necessary, replace the faulty module

Related codes

U2614U2616U2600

FAQ

What does the U2615 code mean?

U2615 is an OBD-II diagnostic trouble code that indicates: Auxiliary Transmission Fluid Pump Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2

What causes a U2615 error code?

The most common causes of U2615 include: Open or short circuit in the wiring harness between the modules; ATF auxiliary pump control module malfunction; Problems with power supply or grounding of modules; Malfunction of the second transmission control module (PCM2).

How do I fix a U2615 diagnostic trouble code?

To fix U2615: Check the integrity and connections of the wiring harness between the modules. Check power and grounding of both modules. Scan the CAN bus for communication errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U2615?

Limited driving only, diagnose soon

How much does it cost to fix U2615?

The estimated repair cost for U2615 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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