Toyota Sienna Service Manual: Problem symptoms table
If there are no DTCs output but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.
NOTICE: When replacing the brake actuator assembly, sensor, etc., turn the ignition switch off.
HINT: Inspect the fuse and relay before investigating the suspected areas as shown in the table below. Inspect each malfunction circuit in numerical order for the corresponding symptom.
Anti-lock brake system:
Terminals of ecu
Test mode procedure
1. SPEED SENSOR SIGNAL CHECK (WHEN USING SST CHECK WIRE):
HINT:
If the ignition switch is turned from the ON to the ACC
or LOCK position during Test Mode, the DTCs of the
signal check functio ...
Diagnosis system
1. DESCRIPTION
(a) Release the parking brake pedal.
(b) Check the warning lights.
When ignition switch is turned ON, check that the
ABS warning light and brake warning light come on
for 3 ...
Other materials:
DSP Error
DTC 44-78 DSP Error
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
44-78
An error occurs during the decode process (MP3 /
WMA).
-
INSPECTION PROCEDURE
HINT:
After the inspection is completed, clear the DTCs.
NOTICE:
Th ...
Cellular Phone Registration Failure, Phone Directory Transfer Failure
INSPECTION PROCEDURE
1 CHECK CURRENT CONDITIONS
Proceed to the next step according to the table below.
RESULT
2 CHECK USING ANOTHER CELLULAR PHONE
Check if the system functions using another Bluetooth
compatible cellular phone.
HINT:
Confirm that either the same or a di ...
Dtc check / clear
1. DTC CHECK (NORMAL MODE)
NOTICE:
When the diagnostic system is switched from the
normal mode to the check mode, all the DTCs and
freeze frame data recorded in the normal mode will
be erased. So before switching modes, always check
the DTCs and freeze frame data, and note the ...
