Pinpoint Test F: The Puddle Lamp(s) Are Inoperative
Interior Lighting
Pinpoint Test F: The Puddle Lamp(s) are Inoperative
Refer to Wiring Diagram Set 89, Interior Lamps for schematic and connector information Electrical Diagrams.
Normal Operation
Power is supplied to the puddle lamps from the Smart Junction Box (SJB) fuse 10 (15A). Based on the input status, the SJB (Smart Junction Box) supplies voltage to the puddle lamps.
This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Exterior mirror
- SJB (Smart Junction Box)
PINPOINT TEST F : THE PUDDLE LAMP(S) ARE INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
F1 CHECK THE PUDDLE LAMP OPERATION
- Rotate the instrument panel dimmer switch to the DOME LAMP position.
Are both the puddle lamps inoperative?
Yes
VERIFY the SJB (Smart Junction Box) fuse 10 (15A) is OK. If OK, GO to F2. If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short Electrical Diagrams.
No
GO to F3.
F2 BYPASS THE SJB (Smart Junction Box)
- Ignition OFF.
- Disconnect: SJB (Smart Junction Box) C2280C.
- NOTE: If the jumper wire fails, refer to the Wiring Diagrams to identify the possible causes of the circuit short Electrical Diagrams. After the repair:
If no DTCs are present, test the system for normal operation.
If DTC B106E is present, clear the DTCs and repeat the self-test (required to enable the puddle lamp output driver if DTC B106E is present). Test the system for normal operation.
If DTC B106F is present, install a new SJB (Smart Junction Box). Test the system for normal operation.
Connect a fused jumper wire between the SJB (Smart Junction Box) C2280C-12, circuit CLN25 (VT), harness side and battery positive.
Do the puddle lamps illuminate?
Yes
REMOVE the jumper wire. GO to F5.
No
REMOVE the jumper wire. REPAIR circuit CLN25 (VT) for an open. CLEAR the DTCs. REPEAT the self-test.
F3 CHECK FOR VOLTAGE TO THE EXTERIOR MIRROR
NOTE: Check the suspect puddle lamp bulb before continuing diagnostics.
- Rotate the instrument panel dimmer switch out of the DOME LAMP position.
- Disconnect: Suspect Exterior Mirror.
- NOTE: The courtesy lamps must be active during this test.
Rotate the instrument panel dimmer switch to the DOME LAMP position.
- Measure the voltage between the LH exterior mirror connector C516-11, circuit CLN25 (VT), harness side and ground; or between the RH exterior mirror connector C622-11, circuit CLN25 (VT), harness side and ground.
Is the voltage greater than 10 volts?
Yes
GO to F4.
No
REPAIR circuit CLN25 (VT) for an open. TEST the system for normal operation.
F4 CHECK FOR VOLTAGE TO THE EXTERIOR MIRROR USING THE CONNECTOR GROUND
- Measure the voltage between the suspect exterior mirror connector pins, harness side as follows:
Location Connector-Pin/ Circuit Connector-Pin/ Circuit LH exterior mirror C516-11 CLN25 (VT) C516-2 GD143 (BK/VT) RH exterior mirror C622-11 CLN25 (VT) C622-2 GD138 (BK/WH)
Is the voltage greater than 10 volts?
Yes
INSTALL a new exterior mirror in question. TEST the system for normal operation.
No
For the LH exterior mirror, REPAIR circuit GD143 (BK/VT) for an open. TEST the system for normal operation.
For the RH exterior mirror, REPAIR circuit GD138 (BK/WH) for an open. TEST the system for normal operation.
F5 CHECK FOR CORRECT SJB (Smart Junction Box) OPERATION
- Disconnect all the SJB (Smart Junction Box) connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the SJB (Smart Junction Box) 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 (Smart Junction Box). 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.