|
|
ACS-58 < SERVICE INFORMATION > [ICC] TROUBLE DIAGNOSIS FOR SYMPTOMS • Chime does not sound when the system does not detect any vehicle ahead. (Diagnose the conditions under which the system is detecting the vehicle ahead and when the system is malfunctioning. If there is any mal- Frequently Cannot Detect the Vehicle Ahead/ Detection Zone Is Short" . 1. CHECK ICC WARNING CHIME With “Active Test” of “ICC”, check that ICC warning chime operates normally. OK or NG OK >> Determine preceding vehicle detection status when malfunction occurred. If chime should have sounded: after replacing ICC unit. Perform ICC system running test, and then perform self-diag- NG >> GO TO 2. 2. PERFORM SELF-DIAGNOSIS OF ICC SYSTEM 1. Perform self-diagnosis of ICC system. 2. Check if “DTC 20 CAN COMM CIRCUIT” is indicated. Is it indicated? YES >> Refer to ACS-36, "DTC 20 CAN COMM CIRCUIT" . NO >> GO TO 3. 3. PERFORM SELF-DIAGNOSIS OF UNIFIED METER AND A/C AMP. Perform self-diagnosis of unified meter and A/C amp. Refer to DI-27, "CONSULT-III Function (METER/M&A)" . OK or NG OK >> 1. Replace combination meter. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system NG >> 1. Repair or replace applicable item. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system Symptom 6 Driving Force Is Hunting INFOID:0000000001328854 1. CHECK SELF-DIAGNOSIS OF ECM Perform self-diagnosis of ECM. OK >> Refer to ACS-58, "Symptom 7 ICC System Frequently Cannot Detect the Vehicle Ahead/ Detec- NG >> 1. Repair or replace applicable parts. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system Symptom 7 ICC System Frequently Cannot Detect the Vehicle Ahead/ Detection Zone INFOID:0000000001328855 The detection function may become unstable in the following cases. passing the peak. 1. VISUAL CHECK Check ICC sensor body window for contamination and foreign materials. OK or NG OK >> If any contamination or foreign materials are found, remove them. Then perform ICC system run- ning test. NG >> GO TO 2. 2. CHECK FUNCTION |