Toyota Sienna Service Manual: Diagnosis system
1. CHECK DLC3
- The ECU uses the ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format.
NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches, or the doors.
If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.
HINT: If the display shows an error message after having connected the cable of the intelligent tester to the DLC3, turned the ignition switch to the ON position, and operated the tester, there is a problem on either the vehicle side or the tool side.
- If communication is normal when the tester is connected to another vehicle, inspect the DLC3 of the original vehicle.
- If communication is still not possible when the tester is connected to another vehicle, the problem may be in the tester itself. Consult the Service Department listed in the tester's instruction manual.
Terminals of ECU
1. COMBINATION METER ASSEMBLY
*1: with Power Rear No. 2 Seat with Stowing Function
*2: with Theft Deterrent System
Waveform 1 (Reference) : Using an oscilloscope:
OK ...
Data list / active test
1. DATA LIST
Using the intelligent tester to read the Data List allows
the values or states of switches, sensors, actuators and
other items to be read without removing any parts. This
non-intrusiv ...
Other materials:
Short to GND in Curtain Shield Squib LH Circuit
DTC B1167/85 Short to GND in Curtain Shield Squib LH Circuit
DESCRIPTION
The curtain shield squib LH circuit consists of the center airbag sensor
assembly and the curtain shield
airbag assembly LH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1167/85 is ...
Reassembly
1. INSTALL REAR SEAT STAY SUB-ASSEMBLY
Install the rear seat stay sub-assembly with the nut.
Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf)
2. INSTALL NO. 2 SEAT CUSHION SPRING ASSEMBLY
LH
3. INSTALL LOCUS CABLE LH
Install the locus cable LH with the nut.
Torque: 5.5 N*m (56 kg ...
Insufficient Coolant Temperature for Closed
Loop Fuel Control
DTC P0125 Insufficient Coolant Temperature for Closed
Loop Fuel Control
DESCRIPTION
Refer to DTC P0115
DTC No.
DTC Detection Condition
Trouble Area
P0125
Engine coolant temperature (ECT) does not reach
closed-loop enabling temperature for 20 minutes (t ...
