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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Indicator (Green) Circuit Short to Ground (B157111,B157113)
DESCRIPTION
This DTC is stored when the DCM (telematics transceiver) detects
an open or short in the manual (SOS) switch green indicator circuit of the manual
(SOS) switch. The manual (SOS) switch green indicator illuminates after the ignition
switch is turned to ON.
If the safety connect sy
Disassembly
DISASSEMBLY CAUTION / NOTICE / HINT COMPONENTS (DISASSEMBLY)
Procedure Part Name Code
1 ULTRASONIC SENSOR CLIP
89348D
- -
2 REAR CENTER ULTRASONIC SENSOR
89342A -
- -
3 REAR CORNER ULTRASONIC SENSOR
89342 -
