Toyota Sienna Service Manual: Definition of terms
|
Terms |
Definitions |
| Monitor Description | Description of what ECM monitors and how to detect malfunctions (monitoring purpose and details). |
| Related DTCs | A group of diagnostic trouble codes that are output by ECM based on the same malfunction detection logic. |
| Typical Enabling Conditions | Preconditions that allow ECM to detect malfunction.
With all preconditions satisfied, ECM sets DTC when monitored value(s) exceeds malfunction threshold(s). |
| Sequence of Operation | Order of monitor priority, applied if multiple sensors and
components are involved in single malfunction detection
process.
Each sensor and component monitored in turn and not monitored until previous detection operation is completed |
| Required Sensors / Components | Sensors and components used by ECM to detect each malfunction |
| Frequency of Operation | Number of times ECM checks for each malfunction during each driving
cycle.
"Once per driving cycle" means ECM performs checks for that malfunction only once in single driving cycle. "Continuous" means ECM performs checks for that malfunction whenever enabling conditions are met. |
| Duration | Minimum time for which ECM must detect continuous deviation in monitored value(s) in order to set DTC. Timing begins when typical enabling conditions are met. |
| Malfunction Thresholds | Values, beyond which, ECM determines malfunctions exist and sets DTCs. |
| MIL Operation | Timing of MIL illumination after defect is detected.
"Immediate" means ECM illuminates MIL as soon as malfunction is detected. "2 driving cycles" means ECM illuminates MIL if the same malfunction is detected twice during the next sequential driving cycle. |
PARTS LOCATION
SYSTEM DIAGRAM
Precaution
1. INITIALIZATION
NOTICE:
Perform RESET MEMORY (AT initialization) when
replacing the automatic transaxle assembly, engine
assembly or ECM.
Perform REGISTRATION (VIN registratio ...
How to proceed with
troubleshooting
HINT:
The intelligent tester can be used in steps 2, 3, 4, 6 and 9.
1 VEHICLE BROUGHT TO WORKSHOP
2 CONNECT INTELLIGENT TESTER TO DLC3
HINT:
If the display indicates a communication fault in the ...
Other materials:
Reclining Motor Circuit
DESCRIPTION
The fold seat control ECU receives a switch operation signal from the power
rear no. 2 seat switch and
the fold seat switch, and activates the reclining motor. At this time, the Hall
IC (seatback position sensor)
detects the actuation of the seatback and sends a seatback actuation ...
Eject Error/ Elevator Error/ Clamp Error
DTC 44-45 Eject Error
DTC 44-51 Elevator Error
DTC 44-52 Clamp Error
DESCRIPTION
DTC No.
DTC Detecting Condition
Trouble Area
44-45
Disc cannot be ejected.
Television display assembly
44-51
Mechanical error occurs during elevator operation.
...
Installation
1. INSTALL TRANSFER RH BEARING RETAINER OIL SEAL
(a) Using SST, install a new transfer RH bearing
retainer oil seal to the transfer case at the position
as show in the illustration.
SST 09223-46011
NOTICE:
Do not install the oil seal obliquely
(b) Apply small amount of MP grease to the oi ...
