Pinpoint Test D: One Or More Puddle Lamp Is Inoperative

Interior Lighting

Pinpoint Test D: One Or More Puddle Lamp Is Inoperative

Refer to Wiring Diagram Set 89, Interior Lamps for schematic and connector information. Diagrams By Number

Normal Operation

The Smart Junction Box (SJB) provides voltage to the puddle lamps when the courtesy lamps are on (such as when a door is open or when requested from the instrument panel dimmer switch). The puddle lamps have separate ground circuits.





This pinpoint test is intended to diagnose the following:

- Fuse

- Wiring, terminals or connectors

- Exterior mirror

PINPOINT TEST D : ONE OR MORE PUDDLE LAMP IS INOPERATIVE

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

D1 DETERMINE IF BOTH PUDDLE LAMPS ARE INOPERATIVE

- Ignition OFF.

- Press and hold the instrument panel dimmer switch to the DOME LAMP ON (second detent up) position for 3 seconds.

Are both the puddle lamps inoperative?

Yes
VERIFY the SJB (Smart Junction Box) fuse 10 (15A) is OK. If OK, GO to D4.

If not OK, Refer to the Wiring Diagrams to identify the possible causes of the circuit short. Diagrams By Number

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.

No
GO to D2.

D2 CHECK FOR VOLTAGE TO THE EXTERIOR MIRROR

- Press and hold the instrument panel dimmer switch to the DOME LAMP OFF (second detent down) position for 3 seconds.

- Disconnect: Suspect Exterior Mirror.

- Press and hold the instrument panel dimmer switch to the DOME LAMP ON (second detent up) position for 3 seconds.

- Measure the voltage between the LH exterior mirror C521-5, circuit CLN25 (VT), harness side and ground; or between the RH exterior mirror C615-5, circuit CLN25 (VT), harness side and ground.





Is the voltage greater than 10 volts?

Yes
GO to D3.

No
REPAIR circuit CLN25 (VT) for an open. TEST the system for normal operation.

D3 CHECK THE EXTERIOR MIRROR GROUND CIRCUIT FOR AN OPEN

- Measure the voltage between the LH exterior mirror C521-5, circuit CLN25 (VT), harness side and LH exterior mirror C521-7, circuit GD133 (BK), harness side; or between the RH exterior mirror C615-5, circuit CLN25 (VT), harness side and the RH exterior mirror C615-7, circuit GD145 (BK/BU), harness side.





Is the voltage greater than 10 volts?

Yes
INSTALL a new exterior mirror in question. TEST the system for normal operation.

No
REPAIR the ground circuit in question. TEST the system for normal operation.

D4 BYPASS THE SJB (Smart Junction Box)

- Press and hold the instrument panel dimmer switch to the DOME LAMP OFF (second detent down) position for 3 seconds.

- 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. After the repair: Diagrams By Number

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 D5.

No
REMOVE the jumper wire. REPAIR circuit CLN25 (VT) for an open. CLEAR the DTCs. REPEAT the self-test.

D5 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.