Circuit Diagnosis - Cargo Lamp

CARGO LAMP SWITCH
Location: The switch is part of the liftgate latch assembly (not serviced separately).

Check for damaged or corroded terminals or connectors. Check for terminal tightness.

Check for resistance through the switch.

Switch resistance: OPEN when liftgate closed. Less than one ohm when liftgate open.

Repair/replace as needed.

CARGO LAMP
Check for damaged or corroded terminals or connectors. Check for terminal tightness.
Check voltage through the bulb socket. With bulb removed and liftgate open, measure voltage between socket contacts. Battery voltage should be measured.

Switch Resistance:
LIFTGATE LAMP CONTINUITY BETWEEN
SWITCH POSITION
DOOR A and C
OFF None
OPEN B and C

When measuring for continuity between terminals A to C and B to C some resistance will be measured. This is the resistance of the Bulb.

Repair/replace as needed.

LIFTGATE AJAR TELLTALE BULB
Visually inspect the liftgate ajar telltale bulb in the cluster.

Replace as needed.