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:
Knock Sensor Circuit Low Input/ Knock Sensor Circuit High Input
DTC P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or
Single Sensor)
DTC P0328 Knock Sensor 1 Circuit High Input (Bank 1 or
Single Sensor)
DTC P0332 Knock Sensor 2 Circuit Low Input (Bank 2)
DTC P0333 Knock Sensor 2 Circuit High Input (Bank 2)
DESCRIPTION
A flat type knock sensor (non-resona ...
Camshaft Position Sensor "A" Circuit
DTC P0340 Camshaft Position Sensor "A" Circuit (Bank 1
or Single Sensor)
DTC P0342 Camshaft Position Sensor "A" Circuit Low
Input (Bank 1 or Single Sensor)
DTC P0343 Camshaft Position Sensor "A" Circuit High
Input (Bank 1 or Single Sensor)
DTC P0345 Camshaft Posit ...
Removal
1. REMOVE V-BANK COVER SUB-ASSEMBLY (See
page EM-28)
2. REMOVE NO. 1 ENGINE UNDER COVER (See page
EM-26)
3. DRAIN ENGINE COOLANT (See page CO-6)
4. REMOVE FRONT WHEEL RH
5. REMOVE FRONT FENDER APRON SEAL RH
6. REMOVE V-RIBBED BELT (See page EM-6)
7. DISCONNECT NO. 2 RADIATOR HOSE
(a) Di ...
