Nissan Murano: Side Radar (rear Left) (side Radar Lh) / C1b55-00 Radar Blockage

DTC Description

DTC DETECTION LOGIC

NOTE:

DTC “C1B55-00” may be detected under the following conditions except for possible cause. (Explain to the customer about the difference between the contamination detection function and the indication when the malfunction is detected and tell them, “This is not malfunction”)

• The side radar may be blocked by temporary ambient conditions such as splashing water, mist or fog.

• The blocked condition may also be caused by objects such as ice, frost or dirt obstructing the side radar.

• Due to the nature of radar technology, it is possible to get a blockage warning and not actually be blocked. This is rare and is known as a false blockage warning. A false blocked condition either self-clears or clears after an ignition cycle.

POSSIBLE CAUSE

Stain or foreign materials are deposited.

FAIL-SAFE

The following systems are canceled:

• Blind Spot Warning (BSW)

• Rear Cross Traffic Alert (RCTA)

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Start the engine.

2. Turn the Blind Spot Warning system ON.

3. Select “All DTC Reading” mode.

4. Check if “C1B55-00” is detected as the current malfunction in “Self Diagnostic Result” mode of “Side radar (Rear left)”.

Is the DTC “C1B55-00” detected?

Refer to Diagnosis Procedure.

To check malfunction symptom before repair: Refer to Intermittent Incident.

Confirmation after repair: Inspection End.

CHECK THE REAR BUMPER

Check if rear bumper near the side radar is contaminated with foreign materials.

GO TO 2.

CHECK THE SIDE RADAR

Check if side radar and the side radar outskirts are contaminated with foreign materials.

GO TO 3.

CHECK THE SIDE RADAR INSTALLATION CONDITION

Check side radar installation condition (installation position, properly tightened or a bent bracket).

GO TO 4.

INTERVIEW

1. Ask if there is stain or foreign materials.

2. Ask if there is any temporary ambient condition such as splashing water, mist or fog.

3. Ask if there is any object such as ice, frost or dirt obstructing the side radar.

Are any of above conditions seen?

Explain to the customer about the difference between the blockage detection function and the indication when the malfunction is detected and tell them, “This is not malfunction.”

Inspection End.