Nissan Maxima Service and Repair Manual: Horn

Nissan Maxima Service and Repair Manual / Body exterior, doors, roof & vehicle security / Security control system / DTC/circuit diagnosis / Horn

Description

Horn (high/low) is located inside of front bumper and operates when theft warning system is in alarm phase.

Component Function Check

1.CHECK FUNCTION

  1.  Select HORN in "ACTIVE TEST" mode with CONSULT.

  2.  Check the horn (high/low) operation.

Diagnosis Procedure

Regarding Wiring Diagram information, refer to SEC-136, "Wiring Diagram".

1.CHECK HORN FUNCTION

Check horn function with horn switch

2.CHECK HORN RELAY POWER SUPPLY

  1.  Turn ignition switch ON.

  2.  Perform "ACTIVE TEST" ("HORN") with CONSULT.

  3.  Using an analog voltmeter or an oscilloscope, check voltage between IPDM E/R harness connector E17 terminal 44 and ground.

3.CHECK HORN RELAY CIRCUIT

  1.  Turn ignition switch OFF.

  2.  Disconnect IPDM E/R and horn relay connector.

  3.  Check continuity between IPDM E/R harness connector E17 (A) terminal 44 and horn relay harness connector H1 (B) terminal 1.

4. Check continuity between IPDM E/R harness connector E17 (A) terminal 44 and ground.

4.CHECK INTERMITTENT INCIDENT

Refer to GI-41, "Intermittent Incident".

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