Toyota Yaris: Lighting (ext) / Back-up Light Assembly
Components
COMPONENTS
ILLUSTRATION
| *1 | BACK-UP LIGHT ASSEMBLY | *2 | BACK-UP LIGHT LED |
| *3 | REAR FOG LIGHT LED | *4 | BACK-UP LIGHT LENS AND BODY |
Removal
REMOVAL
PROCEDURE
1. REMOVE BACK-UP LIGHT ASSEMBLY
| (a) Disengage the clamps and disconnect the 2 connectors. | |
(c) Disengage the guides to remove the back-up light assembly.
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE REAR FOG LIGHT LED
(a) Remove the rear fog light LED as shown in the illustration.
| Remove in this Direction |
2. REMOVE BACK-UP LIGHT LED
(a) Remove the back-up light LED as shown in the illustration.
| Remove in this Direction |
Inspection
INSPECTION
PROCEDURE
1. INSPECT BACK-UP LIGHT LED
(a) Check that the back-up light LED.
| (1) Apply auxiliary battery voltage to the back-up light LED and check that the light comes on. OK: | Condition | Specified Condition | | W7-2 (B) - Auxiliary battery positive (+) W7-1 (E) - Auxiliary battery negative (-) | Back-up light LED comes on | If the result is not as specified, replace the back-up light LED. |
| | *a | Component without harness connected (Back-Up Light LED) | | |
2. INSPECT REAR FOG LIGHT LED
(a) Check that the rear fog light LED.
| (1) Apply auxiliary battery voltage to the rear fog light LED and check that the light comes on. OK: | Condition | Specified Condition | | W8-2 (B) - Auxiliary battery positive (+) W8-1 (E) - Auxiliary battery negative (-) | Rear fog light LED comes on | If the result is not as specified, replace the rear fog light LED. |
| | *a | Component without harness connected (Rear Fog Light LED) | | |
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL BACK-UP LIGHT LED
(a) Install the back-up light LED as shown in the illustration.
| Install in this Direction |
2. INSTALL REAR FOG LIGHT LED
(a) Install the rear fog light LED as shown in the illustration.
| Install in this Direction |
Installation
INSTALLATION
PROCEDURE
1. INSTALL BACK-UP LIGHT ASSEMBLY
| (a) Engage the guides to install the back-up light assembly. | |
(b) Install the 2 screws.
| (c) Connect the 2 connectors and engage the clamps. | |
INSTALLATION PROCEDURE 1. INSTALL AUTOMATIC LIGHT CONTROL SENSOR (a) Engage the claws to install the automatic light control sensor.
2...
Other information:
DESCRIPTION The AWD ECU assembly receives signals from the ECM, steering sensor and skid control ECU (brake actuator assembly) via CAN communication. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory U010087 Lost Communication with ECM/PCM "A" Missing Message When the ignition switch is ON, the IG1 terminal voltage is 10 V or more and the vehicle speed is 60 km/h (37 mph) or more, signals cannot be received from the ECM for 1 second or more
CAN communication system
AWD ECU assembly
ECM
Displayed Yes U012687 Lost Communication with Steering Angle Sensor Module Missing Message
When the following continues:
When the IG1 terminal voltage is 10 V or more, communication with the steering sensor is impossible for 1 second or more
When the IG1 terminal voltage is 10 V or more, a condition in which communication with the steering sensor is impossible occurs 1 time or more within a 5-second period, and this occurs 10 times within 60 seconds
CAN communication system
AWD ECU assembly
Steering sensor
Displayed Yes U012987 Lost Communication with Brake System Control Module Missing Message When the IG1 terminal voltage is 10 V or more, communication with the skid control ECU (brake actuator assembly) is impossible for 3 seconds or more
CAN communication system
AWD ECU assembly
Skid control ECU (Brake actuator assembly)
Displayed Yes PROCEDURE 1...
FAIL-SAFE CHART If any of the following DTCs are stored, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily. DTC No. Fail-safe Operation Fail-safe Deactivation Condition P058A01 P062049 P065C07 P160200 P161A87 P162B87 Generator command is fixed...