Nissan Murano: Side Radar (rear Left) (side Radar Lh) / C1b51-16 Blind Spot Warning Indicator Short Circuit

Nissan Murano (Z52) 2015-2024 Service Manual / Cruise Control & Driver Assistance / Driver Assistance System :: Driver Assistance System / Dtc/circuit Diagnosis / Side Radar (rear Left) (side Radar Lh) / C1b51-16 Blind Spot Warning Indicator Short Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)
DTC detection condition
C1B51-16

BSW/BSI IND SHORT CIR

(Blind Spot Warning indicator short circuit)
Diagnosis condition When ignition switch is ON.
Signal (terminal) –
Threshold Short circuit in Blind Spot Warning indicator circuit is detected. (Over current is detected)
Diagnosis delay time –

POSSIBLE CAUSE

  • Blind Spot Warning indicator LH circuit

  • Blind Spot Warning indicator LH

  • Side radar LH

FAIL-SAFE

The following systems are canceled:

  • Blind Spot Warning (BSW)

  • Rear Cross Traffic Alert (RCTA)

DTC Confirmation Procedure

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Start the engine.

  2. Select “All DTC Reading” mode.

  3. Check if “C1B51-16” is detected as the current malfunction in “Self Diagnostic Result” mode of “Side radar (Rear left)”.

Is the “C1B51-16” detected as the current malfunction?

YES>>

Refer to Diagnosis Procedure.

NO>>

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

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

CHECK BSW INDICATOR CIRCUIT FOR SHORT

  1. Turn ignition switch OFF.

  2. Disconnect side radar LH harness connector and blind spot warning indicator LH harness connector.

  3. Check continuity between side radar LH harness connector and ground.

Side radar LH

Ground

Continuity
Connector Terminal
B465 4 No

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the harnesses or connectors.

REPLACE THE BLIND SPOT WARNING INDICATOR

CONSULT

  1. Replace the blind spot warning indicator LH.

  2. Perform “All DTC Reading”.

  3. Check if “C1B51-16” is detected in “Self Diagnostic Result” of “Side radar (Rear left)”

Is the DTC “C1B51-16” detected?

YES>>

Replace the side radar LH. Refer to Removal and Installation.

NO>>

Inspection End.

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