Toyota Tacoma 2015-2018 Service Manual: Short in GPS Antenna (B15C0,B15C1)

Toyota Tacoma 2015-2018 Service Manual / Navigation / Multi Info Display / Navigation System / Short in GPS Antenna (B15C0,B15C1)

DESCRIPTION

These DTCs are stored when a malfunction occurs in the navigation antenna assembly.

DTC No.	DTC Detection Condition	Trouble Area
B15C0	Navigation antenna error	Navigation antenna assembly Navigation receiver assembly
B15C1	Error of the power source to the navigation antenna	Navigation antenna assembly Navigation receiver assembly

CAUTION / NOTICE / HINT

NOTICE:

Check that the navigation antenna assembly cable is properly installed and does not have any sharp bends, pinching or loose connections before performing following inspection procedure (See page ).

PROCEDURE

CHECK DTC

(a) Clear the DTCs (See page (b) Recheck for DTCs and check that no DTCs are output. ).

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

OK:

No DTCs are output.

USE SIMULATION METHOD TO CHECK

2.	INSPECT NAVIGATION ANTENNA ASSEMBLY

(a) Remove the navigation antenna assembly (See page ).

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 - 1a	Always	50 to 500 Ω

Text in Illustration

*a	Component without harness connected (Navigation Antenna Assembly)

REPLACE NAVIGATION RECEIVER ASSEMBLY

REPLACE NAVIGATION ANTENNA ASSEMBLY

Stereo Component Amplifier Malfunction (B15A3)

DESCRIPTION This DTC is stored when a malfunction occurs in the stereo component amplifier assembly. DTC No. DTC Detection Condition Trouble Area ...

Speed Signal Malfunction (B15C2)

DESCRIPTION The navigation receiver assembly receives a vehicle speed signal from the combination meter assembly and information from the navigation antenna assembly, and then adjusts the vehicle ...

Other materials:

Dtc Check / Clear
DTC CHECK / CLEAR NOTICE: When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and freeze frame data recorded in normal mode are cleared. Before changing modes, always check and make a note of DTCs and freeze frame data. HINT: DTCs which are sto ...

Electronic Circuit Inspection Procedure
ELECTRONIC CIRCUIT INSPECTION PROCEDURE 1. BASIC INSPECTION (a) WHEN MEASURING RESISTANCE OF ELECTRONIC PARTS (1) Unless otherwise stated, all resistance measurements should be made at an ambient temperature of 20°C (68°F). Resistance measurements may be inaccurate if measured at high tempe ...

System Diagram
SYSTEM DIAGRAM Circuit Description Component Outline Steering Lock ECU (Steering Lock Actuator or UPR Bracket Assembly) The steering is locked and unlocked by communicating with the certification ECU (smart key ECU assembly) via L ...