Lexus NX: Stereo Component Amplifier Malfunction (B15A3)

Lexus NX Service Manual / Audio & Visual & Telematics / Navigation / Multi Info Display / Navigation System / Stereo Component Amplifier Malfunction (B15A3)

DESCRIPTION

These DTCs are stored when a malfunction occurs in the stereo component amplifier assembly.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B15A3	Stereo Component Amplifier Malfunction	When one of the conditions below is met: Internal power supply malfunction DSP error EEPROM error	Stereo component amplifier assembly

PROCEDURE

CHECK DTC

(a) Clear the DTCs.

Click here

Body Electrical > Navigation System > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Click here

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

USE SIMULATION METHOD TO CHECK

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

SEE MORE:

Removal

REMOVAL PROCEDURE 1. REMOVE INSTRUMENT SIDE PANEL LH Click here 2. REMOVE NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY Click here 3. REMOVE TRIP SWITCH (a) Using a screwdriver, detach the 2 claws and remove the trip switch. HINT: Tape the screwdriver tip before use. *1 Pr

Removal

REMOVAL PROCEDURE 1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY Click here 2. DRAIN COOLANT (for Inverter Coolant) Click here 3. REMOVE NO. 2 MOTOR WATER JACKET COVER ASSEMBLY (a) Remove the 5 bolts. (b) Insert the blade of an oil pan seal cutter between the transaxle housing. Cut

Lexus NX: Stereo Component Amplifier Malfunction (B15A3)

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Display Malfunction (B15A6,B15B0)

Navigation Processor Malfunction (B15AD)

Short in GPS Antenna (B15C0,B15C1)

SEE MORE:

Removal

Removal