OBD Guide

P276B

Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit Low

P276B is an OBD-II diagnostic trouble code meaning: Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit Low. Common causes: damage to the pump wiring harness, pump motor malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Check Engine light comes on
  • Gear shifting problems
  • Reduced transmission performance
  • Noises from the transmission area
  • Activating emergency gearbox operation

Causes

  • Damage to the pump wiring harness
  • Pump motor malfunction
  • Relay or fuse problems
  • Short circuit in the circuit
  • Bad contacts in connectors

How to Fix

  1. Check the pump fuse and relay
  2. Inspect the wiring harness for damage
  3. Check the voltage at the pump connector
  4. Test the pump motor
  5. If necessary, replace the transmission fluid pump

Related codes

Error P276B by Vehicle Brand

FAQ

What does the P276B code mean?

P276B is an OBD-II diagnostic trouble code that indicates: Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit Low

What causes a P276B error code?

The most common causes of P276B include: Damage to the pump wiring harness; Pump motor malfunction; Relay or fuse problems; Short circuit in the circuit.

How do I fix a P276B diagnostic trouble code?

To fix P276B: Check the pump fuse and relay. Inspect the wiring harness for damage. Check the voltage at the pump connector. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P276B?

Limited driving only, diagnose soon

How much does it cost to fix P276B?

The estimated repair cost for P276B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat