risk is high.
INSPECTION PROCEDURE
PROCEDURE
1. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
(a) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
(b) Clear the DTCs See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Pre-Collision System.
(c) Recheck for DTCs.
OK:
DTC C1A01 is not output.
NG -- REPLACE DRIVING SUPPORT ECU See: Cruise Control/Cruise Control Module/Service and Repair/Removal
OK -- CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) See: Accessories and Optional
Equipment/Antitheft and Alarm Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled Systems/How To Proceed
With Troubleshooting
From 08/2009
PRE-COLLISION: PRE-COLLISION SYSTEM: C1A01: Driving Support ECU
C1A01 - Driving Support ECU
DESCRIPTION
The driving support ECU uses the millimeter wave radar sensor to detect obstacles in front of the vehicle.
Based on this information, the driving support ECU calculates the risk of a collision and operates the pre-collision system when it determines that the
risk is high.
INSPECTION PROCEDURE
PROCEDURE
1. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
(a) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
(b) Clear the DTCs See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Pre-Collision System.
(c) Recheck for DTCs.
OK:
DTC C1A01 is not output.
NG -- REPLACE DRIVING SUPPORT ECU See: Cruise Control/Cruise Control Module/Service and Repair/Removal
OK -- CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) See: Accessories and Optional
Equipment/Antitheft and Alarm Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled Systems/How To Proceed
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