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The ASR dash light is a brake assist system/acceleration slip regulation light. When this light comes on in the Isuzu NPR truck, the on board computer in the vehicle detected a malfunction in the acceleration slip regulation and the vehicle needs to be taken for service.
If there is a problem with your ABS system your ASR system is inoperable also. Could be something as simple as a wheel bearing tripping up the ABS. Or it could be a problem with the ASR controller.
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What_do_the_warning_light_BAS_mean_on_the_1999_Mercedes_C280Read more: What_does_the_BAS_ASR_light_mean_in_a_1999_c200
parliamo
It could be your Brake Light Switch. My 2001 E430 wouldn't go into gear from parking and the ABS ASR light was lit. The switch cost about $24.00. It is located behind your brake pedal.
it means change the oil
check to see if the wiring harness for the vehicle has been replaced (they were bad from the factory) it could have possibly shorted out the throttle actuator (the big carburetor looking thing) this will cause the asr light to come on
It means your brake pads need changing.
ASR Records was created in 1995.
ASR is a TRACTION (not Stability) control system. A Yellow triangle will flash on the dashboard in the speedometre when the system is limiting wheelspin and will stay illuminated when the system is turned OFF or has a malfunction. Acceleration Slip Regulation... (depending on model year you can completely disable it. Known as ESP, Electronic Stability Control on later models). With the switch light on (not triangle in dash) it will partially disable it up to 25 mph. Normal operation is <25 mph brakes automatically apply with wheel spin. Over 25> the EA (electronic accelerator) control will automatically reduce engine output. The triangle light in dash comes one when system is activated due to tire slippage.