Vsc, abs, vsc off lights on
03-22-14, 01:19 PM
#31
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Hey team, I have a 1998 lexus gs400, won't accelerate. The only time car will move is when you press accelerator to floor. Purchased both throttle body sensor, and even went as far as purchasing another throttle body. The problem still exist. I need some help.
03-22-14, 06:42 PM
#32
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IACV was my problem with same symptoms that u re describing . Replaced and good now
11-04-14, 12:57 PM
#34
Your lex is in "safe mode"...e.g. its limping. You need to pull the codes on it before throwing any more money at it.
12-04-14, 03:59 PM
#35
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c1223 is general ABS control malfunctiion code.
c1233 is yaw rate sensor.
c0205 is for the left front speed sensor.
Id start with the speed sensor.
Measure resistance between each of terminals 1 and 2 of speed sensor connector.
Resistance: 1.4 − 1.8 kΩ
Next measure resistance between terminal 1 or 2 of speed sensor connector and body ground.
Resistance: 1 MΩ or higher
If those are ok then it's probably in the wiring.
c1233 is yaw rate sensor.
c0205 is for the left front speed sensor.
Id start with the speed sensor.
Measure resistance between each of terminals 1 and 2 of speed sensor connector.
Resistance: 1.4 − 1.8 kΩ
Next measure resistance between terminal 1 or 2 of speed sensor connector and body ground.
Resistance: 1 MΩ or higher
If those are ok then it's probably in the wiring.
12-10-14, 06:27 AM
#37
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12-11-14, 05:53 AM
#38
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12-11-14, 01:43 PM
#40
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Okay. But that doesn't explain why my VSC doesn't turn off. I'm just wondering if anyone has ever had this issue before I take it into Lexus because not one mechanic has been able to explain what it is.
12-12-14, 07:28 AM
#42
Please elaborate. Is your "VSC OFF" light illuminated in the dash? If so what about ABS?
12-12-14, 05:03 PM
#43
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12-15-14, 08:23 AM
#44
Have you lifted the console piece and make sure the switch is plugged in? Does this car have heated seats? If not, did someone plug in the dummy plug into the VSC switch instead of the correct plug? (not sure if they have same layout).
Also, the lamps in the dash will illuminate "VSC OFF"...just to clear that up.
If there is an issue with the system, the "ABS" light will also be illuminated. The fact that you have neither leads me to believe that they have been disabled somehow (cut wires?...aftermarket alarm??). Simple solution, jack up the car in the rear, put it in gear and give it a small amount of gas, if the throttle trims the engine speed, the VSC is working and just has an issue with the switch/signal to tell the BCM to turn off. Also there is a light that illuminates when the rear tires spin. Looks like "S" lines.
When you cycle the key, does the abs/vsc lights illuminate for a few seconds?
Have you checked every single fuse? PS kick panel, DS kick panel, under hood? When i say check, pull each one out and visually inspect and if you cant see through the plastic, then use a multimeter to check continuity. Many systems "share" a fuse and are not all labeled for their functions.
Also, the lamps in the dash will illuminate "VSC OFF"...just to clear that up.
If there is an issue with the system, the "ABS" light will also be illuminated. The fact that you have neither leads me to believe that they have been disabled somehow (cut wires?...aftermarket alarm??). Simple solution, jack up the car in the rear, put it in gear and give it a small amount of gas, if the throttle trims the engine speed, the VSC is working and just has an issue with the switch/signal to tell the BCM to turn off. Also there is a light that illuminates when the rear tires spin. Looks like "S" lines.
When you cycle the key, does the abs/vsc lights illuminate for a few seconds?
Have you checked every single fuse? PS kick panel, DS kick panel, under hood? When i say check, pull each one out and visually inspect and if you cant see through the plastic, then use a multimeter to check continuity. Many systems "share" a fuse and are not all labeled for their functions.
