Last Modified: 11-29-2007 1.6 D
Service Category: Vehicle Exterior Section: Door/Hatch
Model Year: 2008 Model: Sequoia Doc ID: RM00000283H006X
Title: DOOR / HATCH: BACK DOOR CLOSER SYSTEM: DIAGNOSIS SYSTEM (2008 Sequoia)

DIAGNOSIS SYSTEM

1. DESCRIPTION

(a) The power back door drive unit (power back door ECU) controls the vehicle's back door closer system functions. Back door closer system data and Diagnostic Trouble Code (DTC) can be read through the vehicle's Data Link Connector 3 (DLC3).

When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.

2. CHECK DLC3

(a) Check the DLC3 INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: GENERAL INFORMATION (2008 Sequoia) .

3. INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.