Toyota Sienna Service Manual: Terminals of ECU
1. Instrument Panel Junction Block Assembly
Problem symptoms table
HINT:
Proceed to troubleshooting of each circuit in the table below.
1. HEADLIGHT AND TAIL LIGHT SYSTEM
2. AUTOMATIC LIGHT CONTROL SYSTEM
3. LIGHT AUTO TURN OFF SYSTEM
4. FOG LIGHT SY ...
DTC check / clear
1. USING INTELLIGENT TESTER
Hook up the intelligent tester to the DLC3.
Monitor the ECU data by following the prompts on
the tester screen.
HINT:
intelligent tester has "S ...
Other materials:
VC Output Circuit
DESCRIPTION
The ECM constantly uses 5 V from the battery voltages supplied to the +B
(BATT) terminal to operate the
microprocessor. The ECM also provides this power to the sensors through the VC
output circuit.
When the VC circuit is short-circuited, the microprocessor in the ECM and
sens ...
Short to GND in CAN Bus Line
DESCRIPTION
A short to GND is suspected in the CAN bus wire when the resistance between
terminals 4 (CG) and 6
(CANH), or terminals 4 (CG) and 14 (CANL) of the DLC3 is below 200 Ω.
Symptoms
Trouble Area
The resistance between terminals 6 (CANH) and 4 (CG), or ter ...
Washer fluid
If any washer does not work or the
warning message appears on the
multi-information display, the
washer tank may be empty. Add
washer fluid.
WARNINGWhen refilling washer fluid
Do not refill washer fluid when the engine is hot or running, as
washer fluid
contains alcohol and ...
