F - Single Illumination Source Inoperative
Pinpoint Test F - Single Illumination Source InoperativeF1 - Check Illumination Circuit 19 (LB/R)
- Disconnect connector(s) to inoperative illumination source.
- Turn headlamp switch to parking lamp position.
- Actuate panel dimmer switch to maximum without turning on dome lamps.
- Measure voltage between circuit 19 (LB/R) and ground.
Is B+ present?
YES GO to F2.
NO SERVICE open in circuit 19 (LB/R). RESTORE system. RETEST system.
F2 - Check Ground Circuit 57 (BK)
- Measure resistance between circuit 57 (BK) and ground.
Is resistance less than 5 ohms?
YES GO to F3.
NO SERVICE open in circuit 57 (BK). RESTORE system. RETEST system.
F3 - Determine Serviceability Of Bulb
- Check continuity of bulb.
Is illumination bulb OK?
YES REPLACE illumination bulb. RESTORE system. RETEST system.
NO REPLACE component. RESTORE vehicle. RETEST system.