Lexus NX: Deceleration Sensor (C1245)
DESCRIPTION
The parking brake ECU assembly receives vehicle tilt information from the deceleration sensor (airbag ECU assembly) via CAN communication.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | Note |
|---|---|---|---|---|---|
| C1245 | Deceleration Sensor | One of the following conditions is met:
| Deceleration sensor (Airbag ECU assembly) | Yes | An electric parking brake system malfunction is displayed on the multi-information display. |
CAUTION / NOTICE / HINT
NOTICE:
When replacing the deceleration sensor (airbag ECU assembly), perform zero point calibration.
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PROCEDURE
| 1. | CHECK DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) |
(a) Check for DTC.
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| DTC is output | .gif) | GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
|
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| 2. | CHECK DTC (ELECTRIC PARKING BRAKE SYSTEM) |
(a) Clear the DTC.
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(b) Turn the power switch off.
(c) Check for DTC.
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| DTC is output | | REPLACE AIRBAG ECU ASSEMBLY |
| DTC is not output | | USE SIMULATION METHOD TO CHECK |
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Short Circuit in Power Source Circuit (C13A1)
DESCRIPTION The following DTCs are stored when a malfunction occurs in the parking brake ECU assembly. DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C13A1
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DESCRIPTION When the power switch is turned on (IG), power is supplied to the parking brake ECU assembly. This DTC is stored if the IG power source is not input to the parking brake ECU assembly when
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Back Door Courtesy Switch Circuit
DESCRIPTION The main body ECU (multiplex network body ECU) receives a back door open or closed signal from the back door courtesy light switch. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).
Disassembly
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