I think w/o daytime running lights and the regular headlamps that came with the new car.I think w/o daytime running lights and the regular headlamps that came with the new car.
I downloaded a PDF manual. The daytime running lights are simply the headlights running at reduced brightness even with the lever turned to off when the Hybrid System is on and the parking brake is off. I assume the headlights are regular lamps that came when the car was new.I downloaded a PDF manual. The daytime running lights are simply the headlights running at reduced brightness even with the lever turned to off when the Hybrid System is on and the parking brake is off. I assume the headlights are regular lamps that came when the car was new.
I wasn't sure which fuse was a H-LP LO 15A so I pulled all the 15A fuses and they all looked good. I did manage to drop one of them into an irretrievable crevice. I'll buy another tomorrow. Thanks for the suggestion.I wasn't sure which fuse was a H-LP LO 15A so I pulled all the 15A fuses and they all looked good. I did manage to drop one of them into an irretrievable crevice. I'll buy another tomorrow. Thanks for the suggestion.
It wasn't the fuse, but it would have helped a novice to mention that the fuse names are listed on the inside of the fuse cover. Also, there is a white fuse removal tool inside the fuse box. I guess I could have looked up the info on Goole.It wasn't the fuse, but it would have helped a novice to mention that the fuse names are listed on the inside of the fuse cover. Also, there is a white fuse removal tool inside the fuse box. I guess I could have looked up the info on Goole.
What was it? My car is doing the same thing and I am afraid of dropping fuses.What was it? My car is doing the same thing and I am afraid of dropping fuses.
What did the problem turn out to be? I am afraid of dropping fuses for nothing.What did the problem turn out to be? I am afraid of dropping fuses for nothing.
Re: Prius high beam lights work but low beam lights do...
On a 2008 Prius, If both High beams work but only one side has working low beams, then it is most likely a fuse. So before breaking your knuckles to change the bulb, check the fuse first. I found out the hard way as my mom distressed to me that her drivers side headlights were out. So without checking to see if low and high were working, I proceeded to remove and replace the bulb - ouch! There are 4 10 amp fuses that protect the circuits for low/high beam function. They are under the hood in the fuse box on the drivers side and they are marked on the box cover. Check them before changing the bulb.
Re: Prius high beam lights work but low beam lights do...
There is four 10 amp fusses one for each light function left high left low right high right low my right low was out so I bought bulbs an it did not change a thing. Spent hours checking for bad contacts then when I decided it was beyond my knowledge I was ready to take it back to a dealership to get it checked out. Being Sunday I decided to see if anyone else has had that problem and thankfully there was one that told about the individual fuses.So I opened my fuse box and to my surprise there was a fuse missing and the only one that has been under my hood besides me is the mechanic at Ramney motors Bluefield West Virginia. At 99 dollars an hour for labor I wounded how much they would have took me for? My headlights worked fine before they worked on it!
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Low Beam System Operation
The headlamps may be turned on two different ways. First, when the end of the of the turn signal/headlamp switch lever is turned to the second detent position, the headlamps will illuminate. A ground signal is provided to the DRL control module. The module then provides a ground path to the coils of the HLP relay. Since the head relay is provided with battery voltage to both the contacts and the coil, the coil becomes energized and closes the contacts providing voltage to the DIM relay. With voltage and ground provided, the low beam lamps light. Second, with the switch in the OFF position, for automatic lamp control (ALC). During ALC the headlamps will be in one of the following modes of operation:
• Daytime running lamp (DRL) operation in daylight conditions, refer to DRL below for the operation of the circuit.
• Low beam headlamp operation in low light conditions. When the ambient light sensor senses a low light condition for approximately 15 seconds, it will cancel DRL operation and turn on the headlamps at 100 percent intensity. A path to ground is provided to the coil of the HLP relay. With a direct path to ground provided to the headlamps though the DRL control module, the headlamps will light at 100 percent intensity.
High Beam System Operation
The high-beam headlamp operation is controlled using the turn signal/headlamp switch lever on the steering column. In order to change headlamp operation from low-beam to high-beam, push the switch lever toward the instrument panel (until the detent is felt) and release. With the switch lever in the high beam position, ground is provided to the DRL control module through the turn signal/headlamp switch and splice pack 200 to G200. The DRL control module provides a ground to the coil of the dimmer relay. Since voltage is being applied to the dimmer relay coil, it becomes energized. Voltage is then applied through the closed contacts of the dimmer relay and the to the high beam lamps in the headlamps. Since ground is provided to the headlamps through the closed contacts of the energized DIM relay, the high beam lamps light. The high-beam indicator (blue) in the instrument cluster will light during high-beam headlamp operation. In order to change headlamp operation back to low-beam operation, pull the turn signal switch lever toward the driver (until the detent is felt) and release.Your best bet , take it to a qualified repair shop.
Here is how they are suppose to work .
Headlamps
The headlamps may be turned on two different ways. First, when the driver places the headlamp switch in the HEADLAMP position, for normal operation. Second, with the headlamp switch placed in the OFF position, for automatic lamp control (ALC). During ALC, the headlamps will be in day time running lamp (DRL) operation in daylight conditions, or low beam operation in low light conditions. The LH HDLPand RH HDLP fuses, supply battery positive voltage from the underhood junction block to the left and right headlamps. The circuit continues through both low and high beam lamps, then back to the underhood junction block. The low beam and high beam circuits continue to the headlamp switch. The low beam and high beam circuits also provide the body control module (BCM) with both low and high beam inputs. The headlamp switch includes the dimmer switch and the flash-to-pass switch. When the headlamp switch is placed in the HEADLAMP position a path to ground is provided. Ground is provided at G201. Depending on the position of the high/low beam switch, either the low or high beam circuit will now have power and ground.
The LH HDLP fuse in the underhood junction block, supplies battery positive voltage to the automatic lamp control (ALC) headlamp relay coil circuit. The ALC relay switch circuit is connected to the low beam circuit at the headlamp switch. When the headlamp switch is placed in the OFF position, the BCM will automatically turn on the low beams in low light conditions. The BCM energizes the ALC relay, closing the switch contacts and grounding the low beam circuit. Ground is provided at G201. With the headlights in the low beam position, the high beams may be momentarily turned on or flashed with the dimmer switch handle. The flash-to-pass feature is accomplished by pulling the dimmer switch handle toward the driver. The headlights may be switched to high beam with the opposite movement of the dimmer switch lever. When the headlamp dimmer switch handle is pulled toward the driver, the flash-to-pass switch closes grounding the high beam circuit. Ground is provided at G201. Both high beams will remain on until the driver releases the switch handle.
If the driver places the headlight switch in the HEADLAMP position , the headlights will remain on until turned off or the battery runs dead.
Saturn what , ION , VUE , L300 LW300 ? Did you check the fuses ? 2.2 l headlamp relay . The lights are controlled by the BCM - body control module .
The headlamps may be turned ON 2 different ways. First, when the driver places the headlamp switch in the HEAD position, for normal operation. Second, with the headlamp switch placed in the AUTO position, during operation in low light conditions.
On vehicles with manual headlamps, the LH HDLP and RH HDLP fuse in the fuse block - underhood, supply battery positive voltage to both low beam lamps and high beam lamps at all times. The low beam and high beam circuits continue through the fuse block - underhood, through the body control module (BCM), and to the headlamp switch. The low beam or high beam circuit then, depending on the position of the dimmer switch, continues through the headlamp switch. When the headlamp switch is placed in the ON position, it provides a ground path for the low beam or high beam lamps through G203. The low beam and high beam circuits are monitored by the BCM.
I don't think this is a fuse problem ! more then likely a headlamp switch or dimmer switch or a ground problem or relay if your vehicle has 2.2l engine !
I I
Not a fuse problem , same fuse power's low an high beams . Looking at wiring diagrams an using a DVOM - digital volt ohm meter to test the electrical circuit's is the way to find the problem . The light's staying on for 3 or 4 min's. is a function of the BCM - body control module ! Do you know anything about automotive electrical testing ? Do you know what a wiring diagram is an how to read one . Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. Year , make , model an engine size . Under system click on lighting ,then under subsystem click on headlamps .Click the search button then the blue link. get yourself a cheap DVOM an test the electrical circuit's , this is how electrical problems are solved . Electric Testing Techniques You Need to Know Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
Plus reading factory service repair info for how it should work would be a good idea .
Headlamps
The headlamps may be turned on two different ways. First, when the driver places the headlamp switch in the HEADLAMP position, for normal operation. Second, with the headlamp switch placed in the OFF position, for automatic lamp control (ALC). During ALC, the headlamps will be in day time running lamp (DRL) operation in daylight conditions, or low beam operation in low light conditions. The LH HDLPand RH HDLP fuses, supply battery positive voltage from the underhood junction block to the left and right headlamps. The circuit continues through both low and high beam lamps, then back to the underhood junction block. The low beam and high beam circuits continue to the headlamp switch. The low beam and high beam circuits also provide the body control module (BCM) with both low and high beam inputs. The headlamp switch includes the dimmer switch and the flash-to-pass switch. When the headlamp switch is placed in the HEADLAMP position a path to ground is provided. Ground is provided at G201. Depending on the position of the high/low beam switch, either the low or high beam circuit will now have power and ground.
The LH HDLP fuse in the underhood junction block, supplies battery positive voltage to the automatic lamp control (ALC) headlamp relay coil circuit. The ALC relay switch circuit is connected to the low beam circuit at the headlamp switch. When the headlamp switch is placed in the OFF position, the BCM will automatically turn on the low beams in low light conditions. The BCM energizes the ALC relay, closing the switch contacts and grounding the low beam circuit. Ground is provided at G201. With the headlights in the low beam position, the high beams may be momentarily turned on or flashed with the dimmer switch handle. The flash-to-pass feature is accomplished by pulling the dimmer switch handle toward the driver. The headlights may be switched to high beam with the opposite movement of the dimmer switch lever. When the headlamp dimmer switch handle is pulled toward the driver, the flash-to-pass switch closes grounding the high beam circuit. Ground is provided at G201. Both high beams will remain on until the driver releases the switch handle.
If the driver places the headlight switch in the HEADLAMP position , the headlights will remain on until turned off or the battery runs dead.
Do you know what a factory diagnostic trouble shooting chart is ?
Headlamps Inoperative - Low Beams
Step
Action
Yes
No
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics
1
Did you perform the Lighting System Diagnostic System Check?
YES - Go to Step 2
NO - Go to Diagnostic System Check - Lighting Systems
2
Place the headlamp switch in the HEADLAMP position.
Place the headlamp dimmer switch in the LOW position.
Do the low beam headlamps illuminate?
YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO - Go to Step 3
3
Disconnect the turn/headlamp wiper switch assembly connector C2.
Connect a 15 amp fused jumper between the headlamp low beam signal circuit and a good ground.
Do the low beam headlamps illuminate?
YES - Go to Step 4
NO - Go to Step 5
4
Inspect for poor connections at the harness connector of the turn/headlamp wiper switch assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 7
NO - Go to Step 6
5
Repair an open or high resistance in the headlamp low beam signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
YES - Did you complete the repair?
NO - Go to Step 7
--
6
Replace the turn/headlamp wiper switch assembly. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel and Column.
Did you complete the replacement?
Go to Step 7
--
7
Operate the system in order to verify the repair.
Did you correct the condition?
YES - System OK
NO - Go to Step 3
sounds like the headlight switch is defective and needs replacing,but you need to check to make sure the rod that the switch pushes against if make the full travel and not short as this will not allow the switch to change from low beam to high beam.if the rod is travelling the full length then the switch is no good.you should also hear a click when moving the arm to go from low to high if not then the switch is bad.by holding the lever at a certain position to get the high beams to work this also indicates a switch problem.
pull on the signal lever toward you (ceter position). the signal lever controls the head lights either high beam or low beam. if you pull on the signal lever toward you again, you will have high beam temporarily. and if you push the signal lever towards the front, you will have the high beam locked.
W/ or w/o daytime running lights?HID or regular headlamps?
I think w/o daytime running lights and the regular headlamps that came with the new car.
My wife has the car at work so I can't check the drl
I downloaded a PDF manual. The daytime running lights are simply the headlights running at reduced brightness even with the lever turned to off when the Hybrid System is on and the parking brake is off. I assume the headlights are regular lamps that came when the car was new.
I wasn't sure which fuse was a H-LP LO 15A so I pulled all the 15A fuses and they all looked good. I did manage to drop one of them into an irretrievable crevice. I'll buy another tomorrow. Thanks for the suggestion.
It wasn't the fuse, but it would have helped a novice to mention that the fuse names are listed on the inside of the fuse cover. Also, there is a white fuse removal tool inside the fuse box. I guess I could have looked up the info on Goole.
What was it? My car is doing the same thing and I am afraid of dropping fuses.
What did the problem turn out to be? I am afraid of dropping fuses for nothing.
Dimmer switch
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