Reverse Interlock Door Mirror System: Diagnosis Infiniti M45 II

IVMS COMMUNICATION INSPECTION

IVMS contains the IVMS communication diagnosis and wake-up diagnosis.

IVMS Communication Diagnosis

The IVMS communication diagnosis consists of the communication diagnosis, sleep diagnosis, and inactive communication diagnosis between BCM and each local unit (LCU), and display the results on the CONSULT-II screen.

Note. Sleep is a power saving function when a vehicle is stationary (all BCM related electrical equipment: OFF, and the timer: OFF).

The function also stores the communication malfunction records and inactive communication records, and displays the data on the CONSULT-II screen (Malfunction record diagnosis)

Scheme 157

On Board Diagnosis

BCM can check each local unit (LCU), switches, loads, and malfunctions in communication with the self-diagnosis.

Scheme 158

COMMUNICATION DIAGNOSIS

Check the communication between BCM and each local control unit (LCU).

Scheme 159

Diagnosis Result Display

1. The indicator lamps (the map lamp and step lamp) turn ON (illuminate) for 2 seconds and OFF (go off) for 2 seconds to indicate that the diagnosis has started, then indicate the diagnosis trouble code.
2. To indicate the self-diagnosis trouble code, the indicator lamps illuminate or flash.
3. At first, the lamps indicate the second place by ON / OFF with 0.5 second- interval, then OFF for 1.5 seconds. Next, they indicate the first place by ON / OFF with 0.5 second interval.
4. If there are multiple malfunctioning parts, the lamps indicate them in sequence from the smallest diagnosis trouble code.
5. The diagnosis results repeat until the diagnosis is cancelled.
6. If a malfunction is indicated, carry out the communication diagnosis again to check that the same diagnosis trouble code is indicated.

Scheme 160

Scheme 161

Note. For a specific local control unit (LCU), either "PAST COMM DATA" or "PAST NO RESPONSE" may be displayed instead of the above results. This is caused by the data record, so erase the records. (The display only shows the incident records, they are not malfunctions caused during the diagnosis. One possible cause is that an irreproducible incident occurred.) Follow the steps below to erase the memory. Carry out either disconnect BCM battery power supply or erase memory with CONSULT-II. With the battery connected, if the local control unit (LCU) connector is disconnected and left for approximately 1 minute, the BCM stores "NO RESPONSE" record.

Cancel of Communication Diagnosis

If one of the following conditions is satisfied, the communication diagnosis is cancelled.

1. When the ignition switch is turned OFF.
2. The vehicle speed becomes 7 km/h (4 MPH) or higher.
3. Ten minutes have passed since the diagnosis result indication start without no diagnosis cancel operation.