Pinpoint Test G: The Puddle Lamps Stay On Continuously
Interior Lighting
Pinpoint Tests
Pinpoint Test G: The Puddle Lamps Stay On Continuously
Refer to Wiring Diagram Set 89 (Fusion/Milan/MKZ, Fusion Hybrid/Milan Hybrid), Interior Lamps for schematic and connector information. Diagrams By Number
Normal Operation
When the request from the instrument panel dimmer switch is detected, any door is opened, a correct unlock code from the keyless entry keypad or an unlock request from a programmed Remote Keyless Entry (RKE) transmitter is detected, the Smart Junction Box (SJB) supplies voltage to the puddle lamps.
- DTC B2A39 (Puddle Lamp Output Circuit Open) - an on-demand DTC that sets when the SJB detects a short to voltage from the puddle lamp output circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- SJB
PINPOINT TEST G: THE PUDDLE LAMPS STAY ON CONTINUOUSLY
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
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G1 CHECK THE INTERIOR COURTESY LAMPS
- Ignition OFF.
- Are the interior courtesy lamps illuminated?
Yes
GO to Pinpoint Test F. Pinpoint Test F: The Interior Courtesy Lamps Stay On Continuously
No
GO to G2.
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G2 CHECK THE SJB PUDDLE LAMP OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
- Disconnect: SJB C2280c .
- Ignition ON.
- Do the puddle lamps continue to illuminate?
Yes
REPAIR circuit CLN25 (VT) for a short to voltage. CLEAR the DTCs. REPEAT the self-test.
No
GO to G3.
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G3 CHECK FOR CORRECT SJB OPERATION
- Disconnect all the SJB connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the SJB connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes
INSTALL a new SJB. REFER to Body Control Systems. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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