Toyota Corolla Cross: Hazard Warning Switch Circuit
DESCRIPTION
The combination meter assembly receives the hazard warning signal switch assembly on signal and controls the operation of the hazard warning lights.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
- When replacing the combination meter assembly, update the ECU security key.
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PROCEDURE
|
1. | READ VALUE USING GTS |
(a) Read the Data List according to the display on the GTS.
Body Electrical > Combination Meter > Data List|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Hazard Flasher Switch | Hazard warning signal switch signal |
OFF or ON | OFF: Hazard warning signal switch off ON: Hazard warning signal switch on |
- |
|
Tester Display |
|---|
| Hazard Flasher Switch |
OK:
Normal conditions listed above are displayed.
| OK | .gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
|
|
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| 2. |
INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY |
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| NG | | REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY |
|
| 3. |
CHECK HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH ASSEMBLY - COMBINATION METER ASSEMBLY AND BODY GROUND) |
(a) Disconnect the I5 combination meter assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
I38-6 (TB) - I5-17 (HAZ) |
Always | Below 1 Ω |
|
I38-6 (TB) - Body ground |
Always | 10 kΩ or higher |
|
I5-17 (HAZ) - Body ground |
Always | 10 kΩ or higher |
|
I38-3 (E) - Body ground |
Always | Below 1 Ω |
| OK | | REPLACE COMBINATION METER ASSEMBLY
|
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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PROCEDURE
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DESCRIPTION If air does not flow from the front registers after the blower switch on the air conditioning control assembly is operated, the following factors may be the cause.
Symptom Factor
Blower motor does not operate at all
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Air outlet layout and operations
■ Location of air outlets
The air outlets and air volume
changes according to the
selected air flow mode.
■ Adjusting the position of
and opening and closing
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Direct air flow to the left or
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