LIGHTING SYSTEM

T-47prose procedure

Step 3

Step 3 — Headlight switch connector voltages

1
Turn the headlight switch ON.
05U0TX-088
2
Measure the voltage at the following terminal-wires of the headlight switch connector.

Step 3 — Headlight switch connector voltages

Wire	Headlight switch	Voltage	Action
(W/B)	—	12V	Next check wire (R/B)
(W/B)	—	0V	Repair wire (W/B) (Headlight relay—Headlight switch)
(R/B)	Low beam	12V	Go to Step 4
(R/B)	Low beam	0V	Replace headlight switch
(R/W)	High beam	12V	Go to Step 4
(R/W)	High beam	0V	Replace headlight switch

(W/B)

Headlight switch—

Voltage12V

ActionNext check wire (R/B)

(W/B)

Headlight switch—

Voltage0V

ActionRepair wire (W/B) (Headlight relay—Headlight switch)

(R/B)

Headlight switchLow beam

Voltage12V

ActionGo to Step 4

(R/B)

Headlight switchLow beam

Voltage0V

ActionReplace headlight switch

(R/W)

Headlight switchHigh beam

Voltage12V

ActionGo to Step 4

(R/W)

Headlight switchHigh beam

Voltage0V

ActionReplace headlight switch

Step 4

Step 4 — Check headlight bulbs

1
Check the headlight bulbs.
05U0TX-089
2
If a bulb is burned, replace it.
3
If the bulbs are OK, go to Step 5.

Step 5

Step 5 — Disconnect headlight connectors and measure

1
Disconnect the headlight connectors.
05U0TX-090
2
Turn the headlight switch ON, and measure the voltage at the following terminal-wires as shown.

Step 5 — Headlight connector voltages and remedial action

Headlight	Wire	Headlight switch	Voltage	Remedial Action
Left	(R/B)	Low beam	12V	Repair ground wire (B)
Left	(R/B)	Low beam	0V	Repair wire (R/B) (Headlight switch—Headlight)
Left	(R/W)	High beam	12V	Repair ground wire (B)
Left	(R/W)	High beam	0V	Repair wire (R/W) (Headlight switch—Headlight)
Right	(R/B)	Low beam	12V	Repair ground wire (B)
Right	(R/B)	Low beam	0V	Repair wire (R/W) (Headlight switch—Headlight)
Right	(R/W)	High beam	12V	Repair ground wire (B)
Right	(R/W)	High beam	0V	Repair wire (R/W) (Headlight switch—Headlight)

Left

Wire(R/B)

Headlight switchLow beam

Voltage12V

Remedial ActionRepair ground wire (B)

Left

Wire(R/B)

Headlight switchLow beam

Voltage0V

Remedial ActionRepair wire (R/B) (Headlight switch—Headlight)

Left

Wire(R/W)

Headlight switchHigh beam

Voltage12V

Remedial ActionRepair ground wire (B)

Left

Wire(R/W)

Headlight switchHigh beam

Voltage0V

Remedial ActionRepair wire (R/W) (Headlight switch—Headlight)

Right

Wire(R/B)

Headlight switchLow beam

Voltage12V

Remedial ActionRepair ground wire (B)

Right

Wire(R/B)

Headlight switchLow beam

Voltage0V

Remedial ActionRepair wire (R/W) (Headlight switch—Headlight)

Right

Wire(R/W)

Headlight switchHigh beam

Voltage12V

Remedial ActionRepair ground wire (B)

Right

Wire(R/W)

Headlight switchHigh beam

Voltage0V

Remedial ActionRepair wire (R/W) (Headlight switch—Headlight)

Step 6

Step 6 — Headlight switch (combination switch) voltages

1
Turn the headlight switch ON.
05U0TX-091
2
Measure the voltage at the following terminal-wires of the headlight switch connector (in the combination switch).

Step 6 — Headlight switch connector voltages

Wire	Voltage	Action
(L/Y)	12V	Next check wire (B)
(L/Y)	0V	Repair wire (L/Y) (Headlight relay—Headlight switch)
(B)	12V	Repair ground wire (B)
(B)	0V	Replace headlight switch

(L/Y)

Voltage12V

ActionNext check wire (B)

(L/Y)

Voltage0V

ActionRepair wire (L/Y) (Headlight relay—Headlight switch)

(B)

Voltage12V

ActionRepair ground wire (B)

(B)

Voltage0V

ActionReplace headlight switch

Support our work!

LIGHTING SYSTEM

Step 3

Step 3 — Headlight switch connector voltages

Step 3 — Headlight switch connector voltages

Step 4

Step 4 — Check headlight bulbs

Step 5

Step 5 — Disconnect headlight connectors and measure

Step 5 — Headlight connector voltages and remedial action

Step 6

Step 6 — Headlight switch (combination switch) voltages

Step 6 — Headlight switch connector voltages

Search Manual