Toyota Sienna Service Manual: Power back door system

Back Door Closer does not Operate

DESCRIPTION The power back door ECU controls the back door closer system. In response to the signals output from the switches related to the back door lock, the back door latch activates the clo ...

How to proceed with troubleshooting

HINT: Troubleshoot in accordance with the procedures on the following pages. 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK 3 INSPECT COMMUNICATION FUNCTION OF ...

Other materials:

Open in Pump Motor Circuit
DTC C1251/51 Open in Pump Motor Circuit DESCRIPTION The motor relay (semiconductor relay) is housed in the brake actuator assembly and drives the pump motor based on a signal from the skid control ECU. WIRING DIAGRAM Refer to DTCs C0273/13 and C0274/14 (See page BC-31). INSPECTION PROCED ...

Short to B+ in Front Pretensioner Squib LH Circuit
DTC B0138/72 Short to B+ in Front Pretensioner Squib LH Circuit DESCRIPTION The front pretensioner squib LH circuit consists of the center airbag sensor assembly and the front seat outer belt assembly LH. This circuit instructs the SRS to deploy when deployment conditions are met. DTC B01 ...

Control Module Performance
DESCRIPTION The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly. If outputs from the CPUs are different and deviate from the standards, the ECM will illuminate the MIL and set a DTC immediately. The ECM also monitors the cru ...