Toyota Sienna Service Manual: Dtc check / clear
1. DTC CHECK (USING SST CHECK WIRE)
(a) Check DTCs.
(1) Turn the ignition switch off.
(2) Using SST, connect terminals TC and CG of DLC3.
SST 09843-18040
(3) Turn the ignition switch to the ON position.
(4) Read and record any DTCs from the tire pressure warning light on the combination meter.
Refer to the illustration as examples of a normal system code and codes 13 and 33.
HINT:
- If the tire pressure warning light does not
indicate any DTCs or the normal system
code, inspect the tire pressure warning light
circuit or TC and CG terminal circuit.
- If 2 or more malfunctions are indicated at the same time, the lowest numbered DTC is displayed first.
(5) Refer to the Diagnostic Trouble Code Chart (See page TW-37) for DTC information.
(6) After completing the check, turn the ignition switch off and remove SST from DLC3.
SST 09843-18040
2. DTC CHECK (USING INTELLIGENT TESTER)
(a) Check DTCs.
(1) Make sure that the ignition switch is off.
(2) Connect the intelligent tester to the DLC3.
(3) Turn the ignition switch to the ON position.
(4) Read the DTCs following the prompts on the tester screen.
HINT: Refer to the intelligent tester operator's manual for further details.
(b) Clear the DTCs.
HINT: After repairing the malfunctions, clear the DTCs.
(1) Make sure that the ignition switch is off.
(2) Connect the intelligent tester to DLC3.
(3) Turn the ignition switch to the ON position.
(4) Clear the DTCs following the prompts on the tester screen.
HINT: Refer to the intelligent tester operator's manual for further details.
Diagnosis system
1. CHECK BATTERY VOLTAGE
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge the battery before
proceeding.
2. CHECK DLC3
(a) The ECU uses the ISO 15765-4 for communication
pr ...
Data list / active test
1. DATA LIST
HINT:
Using the intelligent tester to read the DATA LIST allows
the values or states of switches, sensor, actuators and
other items to be read without removing any parts. This
non-in ...
Other materials:
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
opera ...
Check for intermittent problems
1. CHECK FOR INTERMITTENT PROBLEMS
HINT:
For use of the intelligent tester only:
Inspect the vehicle's ECM using check mode.
Intermittent problems are easier to detect with an
intelligent tester when the ECM is in check mode. In
check mode, the ECM uses 1 trip detection logic, which
is more ...
System Voltage
MONITOR DESCRIPTION
The battery supplies electricity to the ECM even when the ignition switch is
off. This power allows the
ECM to store data such as DTC history, freeze frame data and fuel trim values.
If the battery voltage falls
below a minimum level, these memories are cleared and the ...