HEADLAMP — Headlamp Aiming Control — Trouble Diagnosis (Models with Daytime Light System)
EL-6013flowchartThree-step diagnosis prior to motor swap — verifies the DRL system is happy first (because the aiming switch power feed is gated by the DRL controller on the with-DRL variant per EL-6010). Continues on EL-6014.
Trouble diagnosis — Models with Daytime Light System
WARNING
SYMPTOM: Headlamp aiming does not operate
1
INSPECTION START
2
CHECK DAYTIME LIGHT SYSTEM — 1) Start engine. 2) Make sure that headlamp low beam, clearance, tail, license and instrument illumination lamps are turned ON.
NG
NG → Check daytime light system. (Refer to "HEADLAMP — Daytime Light System".)
OK
3
Ⓐ CHECK POWER SUPPLY (For headlamp aiming switch) — 1) Stop engine. 2) Disconnect headlamp aiming switch connector. 3) Turn lighting switch to 1st position. 4) Check if 12-14 volts exist between headlamp aiming switch harness connector terminal ① and ground.
NG
NG → Check: Harness connectors M148/E70; Fuse block connectors M139/E56; Harness continuity between daytime light control unit and headlamp aiming switch; Battery charge condition. If NG, recharge battery, repair or replace harness or connectors.
NG → Check: Harness connectors M148/E70; Fuse block connectors M139/E56; Harness continuity between daytime light control unit and headlamp aiming switch; Battery charge condition. If NG, recharge battery, repair or replace harness or connectors.
OK
4
Ⓑ CHECK GROUND CIRCUIT (For headlamp aiming switch) — 1) Turn lighting switch to OFF position. 2) Check harness continuity between headlamp aiming switch harness connector terminal ② and body ground. Continuity exists ... OK
NG
NG → Repair harness between headlamp aiming switch and body ground.
OK
5
Ⓒ CHECK POWER SUPPLY (For aiming motor units) — 1) Disconnect aiming motor units connectors. 2) Turn lighting switch to 1st position. 3) Check voltage between aiming motor units harness connector terminal ③ and ground. Voltage: Battery voltage
NG
NG → Check: Harness connectors M148/E69; Harness continuity between lighting switch and aiming motor units. If NG, repair or replace harness or connectors.
OK
6
Ⓐ → continued on EL-6014