| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VK1B |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - 08/2016] |
| Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: Generator Signal Circuit; 2016 MY Sienna [12/2015 - 08/2016] | ||
|
Generator Signal Circuit |
DESCRIPTION
When the engine is started, the generator rotates and a pulsed voltage signal is generated. This signal is used by the air conditioning amplifier. The generated voltage signals sent from the generator are used for controlling the number of the heater elements to be heated.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - GENERATOR) |
(a) Disconnect the D75 air conditioning amplifier connector.
(b) Disconnect the B29 generator connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D75-25 (ALT) - B29-3 (M) |
Always |
Below 1 Ω |
|
D75-25 (ALT) or B29-3 (M) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
2. |
INSPECT GENERATOR |
(a) Inspect the generator (See page
![2016 MY Sienna [12/2015 - 08/2016]; 2GR-FE BATTERY / CHARGING: CHARGING SYSTEM: ON-VEHICLE INSPECTION](/t3Portal/stylegraphics/info.gif)
for On-Vehicle Inspection,
for Inspection).
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG |
|
|
|