Lighting and Horns

Diagnostic Routine AE

Diagnostic Overview

DTC B11D9:16

Refer to Wiring Diagram Set 10 for schematic and connector information Electrical Diagrams.

Refer to Wiring Diagram Set 13 for schematic and connector information Electrical Diagrams.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions






Visual Inspection and Diagnostic Pre-checks

- Check the charging system for correct operation.

Pinpoint Test

1. RECHECK THE FLM (Front Lighting Control Module) DTCs (Diagnostic Trouble Codes)

1. Ignition ON.

2. Using a scan tool, clear the DTCs (Diagnostic Trouble Codes) and repeat the FLM (Front Lighting Control Module) on-demand self-test.

Is DTC (Diagnostic Trouble Code) B11D9:16 still present?








2. CHECK FOR CHARGING SYSTEM DTCs (Diagnostic Trouble Codes) IN THE PCM (Powertrain Control Module)

1. Enter the following diagnostic mode on the scan tool: PCM Self-Test.

2. Using a scan tool, perform the PCM (Powertrain Control Module) KOEO (Key ON Engine OFF) self-test.

3. Using a scan tool, retrieve the continuous memory DTCs (Diagnostic Trouble Codes) from the PCM (Powertrain Control Module).

Are any charging system DTCs (Diagnostic Trouble Codes) set in the PCM (Powertrain Control Module)?








3. CHECK THE BATTERY CONDITION AND STATE OF CHARGE

1. Ignition OFF.

2. Check the battery condition and verify the battery is fully charged. REFER to Diagnostic Routine A: Battery Condition Test Pinpoint Tests.

Is the battery OK and fully charged?








4. CHECK THE FLM (Front Lighting Control Module) VOLTAGE PID (Parameter Identification)

1. Ignition ON.

2. Measure and record the voltage at the battery.

3. Using a scan tool, view FLM (Front Lighting Control Module) PIDs (Parameter Identifications).

4. Using a scan tool, monitor the FLM (Front Lighting Control Module) VBAT_INPUT PID (Parameter Identification).

Is the voltage within 0.2 volt of the recorded battery voltage?








5. CHECK THE FLM (Front Lighting Control Module) VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE

1. Ignition OFF.

2. Disconnect: FLM (Front Lighting Control Module).

3. Ignition ON.

4. Measure:





Is the voltage within 0.2 volt of the recorded battery voltage?








6. CHECK THE FLM (Front Lighting Control Module) GROUND CIRCUIT FOR HIGH RESISTANCE

1. Ignition OFF.

2. Measure:





Is the resistance less than 3 ohms?








7. CHECK FOR CORRECT FLM (Front Lighting Control Module) OPERATION

1. Disconnect and inspect all BCM (Body Control Module) connectors.

2. Repair:

- corrosion (install new connector or terminals- clean module pins)
- damaged or bent pins- install new terminals/pins
- pushed-out pins- install new pins as necessary

3. Reconnect the BCM (Body Control Module) connectors. Make sure they seat and latch correctly.

4. Operate the system and determine if the concern is still present.

Is the concern still present?