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2022 CHEVROLET BOLT EUV
65 kWh Single Motor FWD•FWD•AUTOMATIC•ev
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor314Torque3680Fluid5DTC849Battery1Maintenance0Recalls4
P1623moderate severityPowertrain

Transmission Temp Pull-Up Resistor

on 2022 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD

What this code means

The pull-up resistor for the transmission temperature circuit is faulty. This affects accurate transmission temperature readings.

Symptoms

  • Check engine light on
  • Erratic temperature readings
  • Abnormal shift behavior

Common causes

  • Faulty pull-up resistor
  • Bad transmission temp sensor
  • Damaged circuit wiring
  • Faulty control module

Diagnostic steps

  1. Scan for stored codes
  2. Check transmission temp sensor circuit
  3. Measure pull-up resistor value
  4. Inspect wiring and connectors
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