DTC B119F-1D; GPS Antenna Circuit Malfunction

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION & POSSIBLE CAUSE

Description	GPS antenna circuit malfunction
Detection condition	The connectivity master unit detects a current value in the GPS antenna circuit of (31 mA or more) with the ignition switched ON (engine off or on).
Fail-safe function	Not applicable
Possible cause	GPS antenna connector or terminal malfunction Connectivity master unit connector or terminal malfunction Short to ground in wiring harness between connectivity master unit terminal 5A and GPS antenna terminal A GPS antenna malfunction Connectivity master unit malfunction

DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	INSPECT GPS ANTENNA CONNECTOR CONDITION Switch the ignition off. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .) Disconnect the GPS antenna connector. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. Is the connector normal?	Yes	Go to the next step.
1		No	Repair or replace the connector, then go to Step 5.
2	INSPECT CONNECTIVITY MASTER UNIT CONNECTOR CONDITION Disconnect the connectivity master unit connector. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. Is the connector normal?	Yes	Go to the next step.
2		No	Repair or replace the connector, then go to Step 5.
3	INSPECT GPS ANTENNA CIRCUIT FOR SHORT TO GROUND Verify that the GPS antenna and connectivity master unit connectors are disconnected. Inspect for continuity between GPS antenna terminal A (wiring harness-side) and body ground. Is there continuity?	Yes	Refer to the wiring diagram and verify if there is a common connector between connectivity master unit terminal 5A and GPS antenna terminal A. If there is a common connector: Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location. Repair or replace the malfunctioning location. If there is no common connector: Repair or replace the wiring harness which is shorted to ground. Go to Step 5.
3		No	Go to the next step.
4	PERFORM DTC INSPECTION AND VERIFY IF GPS ANTENNA IS MALFUNCTIONING PART Always reconnect all disconnected connectors. Reconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .) Clear the DTC for the connectivity master unit using the M-MDS. (See CLEARING DTC [CONNECTIVITY MASTER UNIT] .) Switch the ignition ON (engine off or on) and wait for 7 s or more. Perform the DTC inspection for the connectivity master unit using the M-MDS. (See DTC INSPECTION [CONNECTIVITY MASTER UNIT] .) Is the same DTC displayed?	Yes	Replace the GPS antenna, then go to the next step. (See GLOBAL POSITIONING SYSTEM (GPS) ANTENNA REMOVAL/INSTALLATION .)
4		No	Go to Step 6.
5	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Always reconnect all disconnected connectors. Reconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .) Clear the DTC for the connectivity master unit using the M-MDS. (See CLEARING DTC [CONNECTIVITY MASTER UNIT] .) Switch the ignition ON (engine off or on) and wait for 7 s or more. Perform the DTC inspection for the connectivity master unit using the M-MDS. (See DTC INSPECTION [CONNECTIVITY MASTER UNIT] .) Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the connectivity master unit. (See CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION .) Go to the next step.
5		No	Go to the next step.
6	VERIFY IF OTHER DTCs DISPLAYED Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [CONNECTIVITY MASTER UNIT] .)
6		No	DTC troubleshooting completed.