Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

The MAIN switch can be turned ON/OFF, but the ICC system cannot be set even if the SET/COAST switch is pressed.

NOTE: The system cannot be set in the following cases:

When the vehicle ahead is not detected below the speed of 32 km/h (20 MPH).
When the selector lever is not in the "D" position or manual mode.
When the brake pedal is depressed.
When the VDC is turned OFF.
When ABS or VDC (including the TCS) operates.
When a wheel slips.
When ABS warning lamp is ON.

CHECK CAUSE OF AUTOMATIC CANCELLATION
CONSULT

Check if the cancellation cause in the "CAUSE OF AUTO-CANCEL" in "Work support" mode of "LASER/RADAR".

Is it displayed?

NO

GO TO 2

"OPE SW VOLT CIRC"

Refer to DTC Description .

"VHCL SPD UNMATCH"

Refer to DTC Description .

"IGN LOW VOLT"

Refer to DTC Description .

"ECM CIRCUIT"

Refer to DTC Description .

"CAN COMM ERROR"

Refer to DTC Logic .

"DISTANCE SENSOR (ICC SENSOR) CAN COMM ERR"

Refer to Diagnosis Procedure .

"ABS/TCS/VDC CIRC"

Refer to DTC Description .

"ECD CIRCUIT"

Refer to DTC Description .
PERFORM THE SELF DIAGNOSTIC RESULT
CONSULT
1. Select "Self Diagnostic Result" mode of "LASER/RADAR".
2. Check if any DTC is detected in "Self Diagnostic Result" mode of "ICC/ADAS" or "LASER/RADAR". Refer to DTC Index (ICC/ADAS) or DTC Index (LASER/RADAR).
Is any DTC detected?

YES

GO TO 3

NO

GO TO 4
REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace malfunctioning parts identified by the self-diagnosis result.

GO TO 6
CHECK EACH SWITCH AND VEHICLE SPEED SIGNAL
CONSULT
1. Start the engine.
2. Check that the following items operate normally in "Data Monitor" mode of "LASER/RADAR":
  - "VHCL SPEED SE"
  - "D RANGE SW"
  - "SET/COAST SW"
  - "BRAKE SW"
  - "PKB SW"
Is there a malfunctioning item?

All items are normal

GO TO 5

"VHCL SPEED SE"

Refer to DTC Description .

"D RANGE SW"

Refer to DTC Logic .

"SET/COAST SW"

Refer to DTC Description .

"BRAKE SW"

Refer to DTC Description .

"PKB SW"

Refer to DTC Description .
REPLACE DISTANCE SENSOR (ICC SENSOR)
Replace the distance sensor (ICC sensor). Refer to Removal and Installation .

GO TO 6
CHECK ICC SYSTEM
CONSULT
1. Erase the "Self Diagnostic Result", and then select "Self Diagnostic Result" mode again after performing the action test. (Refer to Description for action test.)
2. Check that the ICC system is normal.
Inspection End.