1. Connect the connector to the DRL control module.
2. Connect the negative battery cable.
3. Measure the voltage at the DRL control module using voltmeter.
If the value are not as specified in the Terminal Voltage List (Reference), inspect the parts under “Inspection item(s)” and related wiring harnesses.
If the system does not work properly even though the parts or related wiring harnesses do not have any malfunction, replace the DRL control module.
|
Terminal |
Signal name |
Connected to |
Test condition |
Voltage (V) |
Inspection item(s) |
||
|
1A |
Power supply |
DRL 15 A fuse |
Under any condition |
B+ |
|
||
|
1B |
Parking brake lever pulled/released |
Parking brake switch |
Parking brake lever pulled |
1.0 or less |
|
||
|
Parking brake lever released |
B+ |
||||||
|
1I |
IG1 |
METER 15 A fuse |
Turn the ignition switch to the ON position. |
B+ |
|
||
|
Turn the ignition switch to the LOCK position. |
1.0 or less |
||||||
|
1K |
High-beam on/off |
Light switch |
Turn the ignition switch to the ON position. |
Dimmer switch at HI |
1.0 or less |
|
|
|
Dimmer switch at LO |
B+ |
||||||
|
1L |
Front fog light switch ON/OFF |
Front fog light switch |
Light switch at 2nd position |
Front fog light switch is on. |
1.0 or less |
|
|
|
Front fog light switch is off. |
B+ |
||||||
|
1M |
Flash-to-pass |
Light switch |
Turn the ignition switch to the ON position. |
Flash-to-pass activated. |
1.0 or less |
|
|
|
Flash-to-pass not activated. |
B+ |
||||||
|
1N |
Front fog light relay operation |
Front fog light relay |
Light switch at 2nd position and dimmer switch at LO |
Front fog light switch is on. |
1.0 or less |
|
|
|
Front fog light switch is off. |
B+ |
||||||
|
2A |
Headlight (RH) operation (high-beam) |
Headlight (high-beam) |
Light switch at 2nd position |
Dimmer switch at LO |
1.0 or less |
|
|
|
Dimmer switch at HI |
1.0 or less |
||||||
|
2C |
Headlight (LH) operation (high-beam) |
Headlight (high-beam) |
Light switch at 2nd position |
Dimmer switch at LO |
1.0 or less |
|
|
|
Dimmer switch at HI |
B+ |
||||||
|
2D |
Ground |
GND |
Under any condition |
1.0 or less |
GND |
||
|
2E |
Headlight (RH) operation (high-beam) |
Headlight (high-beam) |
Light switch at 2nd position |
Dimmer switch at LO |
1.0 or less |
|
|
|
Dimmer switch at HI |
B+ |
||||||
|
2G |
Power supply |
DRL 15 A fuse |
Under any condition |
B+ |
|
||