What causes P1629 on a Honda?

Failed battery current sensor inside the IMA battery box Open or shorted current sensor signal wiring Corroded sensor connector from battery vent gases Deteriorated IMA battery skewing current readings Blown fuse in the battery module sensor circuit

How do I fix P1629 on a Honda?

Inspect the battery current sensor connector for corrosion Test sensor signal voltage against Honda HDS data list values Check the sensor wiring for opens or shorts to ground Evaluate overall IMA battery health since a failing pack stresses the sensor Replace the sensor after confirming the circuit is intact

P1629 Battery Current Sensor Circuit Malfunction

Q: What does P1629 mean on a Honda?

P1629 — Battery Current Sensor Circuit Malfunction. Applies to Insight, Civic Hybrid with IMA.

Category: Powertrain - Hybrid Propulsion
Severity: Check Engine Light
Applies to: Insight, Civic Hybrid with IMA

What does P1629 mean on a Honda?

P1629 — Battery Current Sensor Circuit Malfunction. This Honda-enhanced code applies to Insight, Civic Hybrid with IMA.

Common causes of P1629

Failed battery current sensor inside the IMA battery box
Open or shorted current sensor signal wiring
Corroded sensor connector from battery vent gases
Deteriorated IMA battery skewing current readings
Blown fuse in the battery module sensor circuit

How to fix P1629

Inspect the battery current sensor connector for corrosion
Test sensor signal voltage against Honda HDS data list values
Check the sensor wiring for opens or shorts to ground
Evaluate overall IMA battery health since a failing pack stresses the sensor
Replace the sensor after confirming the circuit is intact