Toyota Sienna Service Manual: Headlight leveling switch
ON-VEHICLE INSPECTION
1. HEADLIGHT LEVELING SWITCH
- Connect the battery positive (+) lead to the terminal 1 and the battery negative (-) lead to the terminal 5.
- Measure the resistance between the terminal 4 and the battery negative (-) lead when headlight leveling switch is operated.
- Measure the resistance between the terminal 5 and the battery negative (-) lead when headlight leveling switch is operated.
Voltage
- Inspect switch illumination.
- Connect the battery positive (+) lead to the terminal 3 and the battery negative (-9 lead to the terminal 6, and check that the illumination comes on.
Hazard warning switch
INSPECTION
1. HAZARD WARNING SIGNAL SWITCH ASSEMBLY
Check that there is resistance between the
terminals at each switch position as shown in the
chart.
Resistance
Inspect ...
Stop light switch
ON-VEHICLE INSPECTION
1. STOP LIGHT SWITCH ASSEMBLY
Check the resistance between the terminals at each
switch position as shown ion the chart.
Resistance
...
Other materials:
How to proceed with
troubleshooting
The intelligent tester can be used in steps 4, 6, 8 and 9.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
3 PASSENGER AIRBAG ON/OFF INDICATOR CHECK
4 DTCs CHECK (Present and Past DTCs)
Check for DTCs.
Result
5 DTCs CHART
6 CIRCUIT INSPECTION
7 REPAIR
8 CLEAR DTCs (Present ...
ECM / PCM Processor
DESCRIPTION
The ECM continuously monitors its internal processors (CPUs), A/F sensor
transistors and heated oxygen
sensor (HO2S) transistors. This self-check ensures that the ECM is functioning
properly. These are
diagnosed by internal "mirroring" of the main and sub CPUs to det ...
Skid Control ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Skid Control ECU
Communication Stop
Mode
"ABS/VSC/TRC" is not displayed on the
"Communication Bus Check" screen of the
intelligent tester
Applies to "Skid Control ...
