Lexus IS250 IS220d GSE20 ALE20 - LIGHTING
HEADLIGHT DIMMER SWITCH - INSPECTION
| 1. REMOVE HEADLIGHT DIMMER SWITCH ASSEMBLY |
Measure the resistance according to the value(s) in the tables below.
- Standard resistance:
- Light Control Switch (LHD, RHD light control switch LH side type):
Tester Connection Switch Condition Specified Condition f1-12 (EL) - f1-18 (T) OFF 10 kΩ or higher f1-18 (T) - f1-19 (AUTO) OFF 10 kΩ or higher f1-19 (AUTO) - f1-20 (H) OFF 10 kΩ or higher f1-12 (EL) - f1-18 (T) TAIL Below 1 Ω f1-12 (EL) - f1-18 (T) HEAD Below 1 Ω f1-18 (T) - f1-20 (H) HEAD Below 1 Ω f1-12 (EL) - f1-19 (AUTO) AUTO Below 1 Ω - Light Control Switch (RHD light control switch RH side type):
Tester Connection Switch Condition Specified Condition f1-19 (EL) - f1-13 (T) OFF 10 kΩ or higher f1-13 (T) - f1-12 (AUTO) OFF 10 kΩ or higher f1-12 (AUTO) - f1-11 (H) OFF 10 kΩ or higher f1-19 (EL) - f1-13 (T) TAIL Below 1 Ω f1-19 (EL) - f1-13 (T) HEAD Below 1 Ω f1-13 (T) - f1-11 (H) HEAD Below 1 Ω f1-19 (EL) - f1-12 (AUTO) AUTO Below 1 Ω - Headlight Dimmer Switch (LHD, RHD light control switch LH side type):
Tester Connection Switch Condition Specified Condition f1-11 (HU) - f1-12 (EL) LOW BEAM Below 1 Ω f1-11 (HU) - f1-12 (EL) HI BEAM Below 1 Ω f1-12 (EL) - f1-17 (HF) HI BEAM Below 1 Ω - Headlight Dimmer Switch (RHD light control switch RH side type):
Tester Connection Switch Condition Specified Condition f1-15 (HU) - f1-19 (EL) LOW BEAM Below 1 Ω f1-15 (HU) - f1-19 (EL) HI BEAM Below 1 Ω f1-19 (EL) - f1-14 (HF) HI BEAM Below 1 Ω - Turn Signal Switch (LHD, RHD light control switch LH side type):
Tester Connection Switch Condition Specified Condition f1-12 (EL) - f1-13 (TR) Right turn Below 1 Ω f1-12 (EL) - f1-13 (TR) Neutral 10 kΩ or higher f1-12 (EL) - f1-15 (TL) Neutral 10 kΩ or higher f1-12 (EL) - f1-15 (TL) Left turn Below 1 Ω - Turn Signal Switch (RHD light control switch RH side type):
Tester Connection Switch Condition Specified Condition f1-19 (EL) - f1-16 (TR) Right turn Below 1 Ω f1-19 (EL) - f1-16 (TR) Neutral 10 kΩ or higher f1-19 (EL) - f1-18 (TL) Neutral 10 kΩ or higher f1-19 (EL) - f1-18 (TL) Left turn Below 1 Ω - Fog Light Switch (LHD, RHD light control switch LH side type):
Tester Connection Switch Condition Specified Condition f1-3 (LFG) - f1-4 (BFG) OFF 10 kΩ or higher f1-4 (BFG) - f1-2 (B) OFF 10 kΩ or higher f1-3 (LFG) - f1-2 (B) OFF 10 kΩ or higher f1-3 (LFG) - f1-4 (BFG) Front fog light switch ON Below 1 Ω f1-3 (LFG) - f1-4 (BFG) Rear fog light switch ON Below 1 Ω f1-4 (BFG) - f1-2 (B) Rear fog light switch ON Below 1 Ω f1-3 (LFG) - f1-2 (B) Rear fog light switch ON Below 1 Ω - Fog Light Switch (RHD light control switch RH side type):
Tester Connection Switch Condition Specified Condition f1-8 (LFG) - f1-7 (BFG) OFF 10 kΩ or higher f1-7 (BFG) - f1-9 (RFG) OFF 10 kΩ or higher f1-8 (LFG) - f1-9 (RFG) OFF 10 kΩ or higher f1-8 (LFG) - f1-7 (BFG) Front fog light switch ON Below 1 Ω f1-8 (LFG) - f1-7 (BFG) Rear fog light switch ON Below 1 Ω f1-7 (BFG) - f1-9 (RFG) Rear fog light switch ON Below 1 Ω f1-8 (LFG) - f1-9 (RFG) Rear fog light switch ON Below 1 Ω
If the result is not as specified, replace the headlight dimmer switch assembly.
LEXUS IS250, IS220d / GSE20 ALE20