Toyota Corolla Cross: Daytime Running Light Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) controls the daytime running lights.
WIRING DIAGRAM
for LED Type Parking Light
for Bulb Type Parking Light
CAUTION / NOTICE / HINT
NOTICE:
- Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*1
Click here
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- First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this symptom.
Click here
- First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CXPI communication malfunctions before troubleshooting this symptom.
for HEV Model: Click here
for Gasoline Model: Click here
- *1: w/ Smart Key System
PROCEDURE
|
1. | PERFORM ACTIVE TEST USING GTS |
(a) Using the GTS, perform the Active Test.
Body Electrical > Main Body > Active Test|
Tester Display | Measurement Item |
Control Range | Diagnostic Note |
|---|---|---|---|
|
Daytime Running Light | Daytime running lights |
OFF or ON | - |
|
Tester Display |
|---|
| Daytime Running Light |
OK:
Clearance lights and daytime running lights illuminate.
| OK | .gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
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| 2. |
CONFIRM MODEL |
(a) Choose the model to be inspected.
|
Result | Proceed to |
|---|---|
|
for LED Parking Light |
A |
| for Bulb Parking Light |
B |
| B |
| GO TO STEP 5 |
|
| 3. |
CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY) |
(a) Disconnect the A131 headlight assembly LH connector.
(b) Disconnect the A134 headlight assembly RH connector
(c) Disconnect the 8E power distribution box assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
A131-1 (AT1) - 8E-5 | Always |
Below 1 Ω |
|
A134-1 (AS1) - 8E-5 | Always |
Below 1 Ω |
|
A131-1 (AT1) - Body ground |
Always | 10 kΩ or higher |
|
A134-1 (AS1) - Body ground |
Always | 10 kΩ or higher |
|
8E-5 - Body ground | Always |
10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 4. |
CHECK POWER DISTRIBUTION BOX ASSEMBLY |
(a) Remove the power distribution box assembly.
HINT:
Click here
(b) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.
(c) Disconnect the 8E power distribution box assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
|
*a | Component without harness connected (Power Distribution Box Assembly) |
- | - |
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
MB-22 (CXPI) - 8E-5 | Always |
Below 1 Ω |
| OK | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG | | REPLACE POWER DISTRIBUTION BOX ASSEMBLY |
| 5. |
CHECK HARNESS AND CONNECTOR (DAYTIME RUNNING LIGHT ASSEMBLY LH - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
B10-1(E) - Body ground |
Always | Below 1 Ω |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 6. |
CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY) |
(a) Disconnect the A131 headlight assembly LH connector.
(b) Disconnect the A134 headlight assembly RH connector.
(c) Disconnect the 8E power distribution box assembly connector.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
A131-6 (B) - 8E-3 | Always |
Below 1 Ω |
|
A134-6 (B) - 8E-3 | Always |
Below 1 Ω |
|
A131-6 (B) - Body ground |
Always | 10 kΩ or higher |
|
A134-6 (B) - Body ground |
Always | 10 kΩ or higher |
|
8E-3 - Body ground | Always |
10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 7. |
CHECK POWER DISTRIBUTION BOX ASSEMBLY |
(a) Remove the power distribution box assembly.
HINT:
Click here
(b) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.
(c) Disconnect the 8E power distribution box assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
|
*a | Component without harness connected (Power Distribution Box Assembly) |
- | - |
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
MB-22 (CXPI) - 8E-5 | Always |
Below 1 Ω |
| OK | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG | | REPLACE POWER DISTRIBUTION BOX ASSEMBLY |
READ NEXT:
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DESCRIPTION The main body ECU (multiplex network body ECU) controls the front fog lights. WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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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 / HIN
Back-up Light Circuit
DESCRIPTION The power distribution box assembly controls the back-up lights via the BKUP LP relay. WIRING DIAGRAM
for HEV Model for Gasoline Model
PROCEDURE
1.
CHECK VEHICLE TYPE (a) C
SEE MORE:
Freeze Frame Data
FREEZE FRAME DATA
FREEZE FRAME DATA
HINT:
When a DTC is stored, the freeze frame data stores the current vehicle (sensor)
state.
The freeze frame data cannot be cleared or updated until the recorded DTCs
are cleared.
Chassis > Tire Pressure Monitor
Tester Display
Maintenance requirements
To ensure safe and economical
driving, day-to-day care
and regular maintenance
are essential. It is the
owner's responsibility to
perform regular checks.
Toyota recommends the
maintenance below.
■Repair and replacement
It is recommended that genuine
Toyota parts be used for repairs to
ensure perf
