Diagnosis Procedure

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

The switch does not turn ON

When the DCA system setting is ON, the DCA system switch indicator does not illuminate even if the dynamic driver assistance switch is depressed.

The switch does not turn OFF

The DCA system switch indicator does not turn OFF even if the dynamic driver assistance switch is pressed when the DCA system switch indicator illuminates.

NOTE: The system cannot be operated when setting conventional (fixed speed) cruise control mode.

CHECK DCA SYSTEM SETTING
1. Start the engine.
2. After starting the engine wait for 5 seconds or more.
3. Check that DCA system setting on the information display is ON.
Is DCA system setting ON?

YES

GO TO 2.

NO

Enable the DCA system setting.
DYNAMIC DRIVER ASSISTANCE SWITCH INSPECTION
1. Start the engine.
2. Check that "DYNA ASIST SW" operates normally in "DATA MONITOR" of "ICC/ADAS" with CONSULT.
Is the inspection result normal?

YES

GO TO 3.

NO

GO TO 5.
CHECK DCA SYSTEM SWITCH INDICATOR CIRCUIT
1. Start the engine.
2. Select the active test item "DCA INDICATOR" of "ICC/ADAS" with CONSULT.
3. Check if the DCA system switch indicator illuminates when the test item is operated.
Is the inspection result normal?

YES

GO TO 6.

NO

GO TO 4.
PERFORM THE SELF-DIAGNOSIS OF COMBINATION METER
1. Perform "All DTC Reading" with CONSULT.
2. Check if the DTC is detected in self-diagnosis results of "METER/M&A". Refer to DTC Index .
Is the inspection result normal?

YES

GO TO 7.

NO

GO TO 6.
CHECK STEERING SWITCH CIRCUIT
Check the steering switch circuit. Refer to Diagnosis Procedure .

Is the inspection result normal?

YES

GO TO 6.

NO

GO TO 7.
PERFORM THE SELF-DIAGNOSIS
1. Perform "All DTC Reading" with CONSULT.
2. Check if the DTC is detected in self-diagnosis results of "ICC/ADAS". Refer to DTC Index .
Is any DTC detected?

YES

GO TO 7.

NO

GO TO 8.
REPAIR OR REPLACE MALFUNCTIONING PARTS.
Repair or replace malfunctioning parts.

GO TO 8.
CHECK DCA SYSTEM
1. Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test. (Refer to Description for action test.)
2. Check that the DCA system is normal.
INSPECTION END