Toyota Sienna Service Manual: Readiness monitor drive pattern
Toyota Sienna Service Manual / Engine / 2Gr-fe engine control system / Sfi system / Readiness monitor drive pattern
- Purpose of readiness tests
- Catalyst monitor (active air-fuel ratio control type)
- Evap monitor (key-off type)
- A/F sensor and ho2s monitors
- Air-fuel ratio (a/f) and heated oxygen (ho2) sensor heater monitors (front a/f and rear ho2 sensor type)
Monitor result information
If you use a generic scan tool, multiply the test value by
the scaling value listed below.
...
Purpose of readiness tests
The On-Board Diagnostic (OBD II) system is
designed to monitor the performance of emissionrelated
components, and indicate any detected
abnormalities with DTCs (Diagnostic Trouble Codes).
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Other materials:
Evaporative Emission System
DTC P043E Evaporative Emission System Reference Orifice
Clog Up
DTC P043F Evaporative Emission System Reference Orifice
High Flow
DTC P2401 Evaporative Emission System Leak Detection
Pump Control Circuit Low
DTC P2402 Evaporative Emission System Leak Detection
Pump Control Circuit High
DTC P ...
How to proceed with
troubleshooting
HINT:
Use this procedure to troubleshoot the theft deterrent
system.
The intelligent tester should be used in step 2.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
Interview the customer to confirm the trouble
3 INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNI ...
Automatic transaxle unit
COMPONENTS
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