Service Information

Orlando

DTC B147F

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC B147F 01: Battery Saver Relay Reset Secondary Circuit Short to Battery

DTC B147F 02: Battery Saver Relay Reset Secondary Circuit Short to Ground

DTC B147F 04: Battery Saver Relay Reset Secondary Circuit Open

Diagnostic Fault Information

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
Battery Saver Relay - Control Circuit	B147F 02	B147F 04	B147F 01	--

Circuit/System Description

The battery saver mode reduces the parasitic load of some modules during overseas shipment or during vehicle storage conditions. This improves the drain time on the battery of up to 70 days without the battery going dead. When the vehicle is in transport/storage, some features may have reduce functionality as a result being in the battery saver mode, such as disabling the Remote Function Actuator or content theft features.

Conditions for Running the DTC

•	The system voltage is between 9–16 V.

•	The DTC can only run when the output is activated.

•	The current DTC will clear when the module request for the output is removed or the malfunction is no longer present.

•	A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.

Reference Information

Schematic Reference

•	Body Control System Schematics

•	Power Distribution Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Power Mode Description and Operation

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Testing

Ignition OFF, disconnect the KR104A Logistic Mode Relay 1.
Connect a test lamp between the relay control circuit and ground.
Command the Battery Saver Relay Command with a scan tool. The test lamp should turn ON and OFF when changing the battery saver relay latch positions.

⇒	If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 Body Control Module.

⇒	If the test lamp is always OFF, test the control circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the K9 Body Control Module.

If all circuits test normal, test or replace the KR104A Logistic Mode Relay 1.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

•	Relay Replacement : Attached to Wire Harness

•	Control Module References for BCM replacement, setup, and programming