Back to 2009 Toyota Highlander

2009 TOYOTA HIGHLANDER

2.7L I4FWDAUTOMATICgas
9 active safety recalls on this vehicle — view recalls
Repairs0Labor473Torque2472Fluid6DTC882Battery1Maintenance0Recalls9
P1600moderate severityPowertrain

ECM Battery Backup Circuit

on 2009 Toyota Highlander 2.7L I4 · FWD

What this code means

The ECM detected a loss of battery voltage at the BATT terminal.

Symptoms

  • CEL
  • Lost fuel trim values
  • Intermittent stalling
  • Difficulty starting

Common causes

  • Corroded battery terminals
  • Damaged EFI fuse
  • Open BATT wiring
  • Weak battery

Diagnostic steps

  1. Check battery terminals
  2. Test EFI fuse
  3. Inspect BATT wiring
  4. Check battery voltage

Repair notes

Clean terminals or replace fuse.

Other Powertrain codes on this vehicle

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