U0695
Lost Communication With Hybrid/EV Battery Pack Coolant Pump B
U0695 is an OBD-II diagnostic trouble code meaning: Lost Communication With Hybrid/EV Battery Pack Coolant Pump B. Common causes: open or short circuit in the pump circuit, cooling pump malfunction. Estimated repair cost: $167–556.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- Error message on the dashboard
- Elevated battery temperature
- The hybrid system may not start
Causes
- Open or short circuit in the pump circuit
- Cooling pump malfunction
- Problems with connectors or wiring harness
- Malfunction of the hybrid system control module
- Pump power problems
How to Fix
- Check fuses and relays associated with the pump
- Diagnose the pump control circuit for opens and short circuits
- Check connectors for oxidation and damage
- Test the performance of the cooling pump
- If necessary, replace the cooling pump
- Repair only from an authorized dealer
Related codes
Error U0695 by Vehicle Brand
FAQ
What does the U0695 code mean?
U0695 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Hybrid/EV Battery Pack Coolant Pump B
What causes a U0695 error code?
The most common causes of U0695 include: Open or short circuit in the pump circuit; Cooling pump malfunction; Problems with connectors or wiring harness; Malfunction of the hybrid system control module.
How do I fix a U0695 diagnostic trouble code?
To fix U0695: Check fuses and relays associated with the pump. Diagnose the pump control circuit for opens and short circuits. Check connectors for oxidation and damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0695?
Do not drive — repair immediately
How much does it cost to fix U0695?
The estimated repair cost for U0695 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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