Check engine and TRAC OFF light stays on
02-24-02, 08:49 AM
#1
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Check engine and TRAC OFF light stays on
Hi,
I have a 93 GS300 and these two warning came on as I was driving. Before bringing it to the dealer, I want to learn more about these warning lights. Is this an ABS problem or traction control problem. If anyone has this problem before, please kindly let me know what the problem may be and what I can expect as far as the repair bill is concern.
Thanks in advance for your assistance.
Kiet
I have a 93 GS300 and these two warning came on as I was driving. Before bringing it to the dealer, I want to learn more about these warning lights. Is this an ABS problem or traction control problem. If anyone has this problem before, please kindly let me know what the problem may be and what I can expect as far as the repair bill is concern.
Thanks in advance for your assistance.
Kiet
03-24-02, 03:02 PM
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eng +trac off stay on on the same time
man i have the same things with my es300 2000
thay come on in the same time
ive scan the computer with OBDII and ive got code P0171
mixture is too lean
which is one of the O2 sensor went bad
on my car each one about 150-200$
i did not change them yet
pls send me email
a.saleh@attbi.com
thay come on in the same time
ive scan the computer with OBDII and ive got code P0171
mixture is too lean
which is one of the O2 sensor went bad
on my car each one about 150-200$
i did not change them yet
pls send me email
a.saleh@attbi.com
03-25-02, 06:31 AM
#3
Lexus Champion
Re: Check engine and TRAC OFF light stays on
https://www.clublexus.com/forums/sho...threadid=32580
go to this site and read up on how to retrieve trouble code. I don't remember which one. IF your 93 is the same as my 93, the ALDL located under the dash above your left knee. Use a paper clip to short the two ports TE1 &E1 I think. The check egnine light will flash. Count the times it flashes... code 25 usually mean O2 sensors...
Good Luck
go to this site and read up on how to retrieve trouble code. I don't remember which one. IF your 93 is the same as my 93, the ALDL located under the dash above your left knee. Use a paper clip to short the two ports TE1 &E1 I think. The check egnine light will flash. Count the times it flashes... code 25 usually mean O2 sensors...
Good Luck
Originally posted by koolkat1973
Hi,
I have a 93 GS300 and these two warning came on as I was driving. Before bringing it to the dealer, I want to learn more about these warning lights. Is this an ABS problem or traction control problem. If anyone has this problem before, please kindly let me know what the problem may be and what I can expect as far as the repair bill is concern.
Thanks in advance for your assistance.
Kiet
Hi,
I have a 93 GS300 and these two warning came on as I was driving. Before bringing it to the dealer, I want to learn more about these warning lights. Is this an ABS problem or traction control problem. If anyone has this problem before, please kindly let me know what the problem may be and what I can expect as far as the repair bill is concern.
Thanks in advance for your assistance.
Kiet
03-29-02, 06:10 AM
#4
Lexus Champion
KoolKat (Kiet),
Have you find out what the trouble code no. yet? No confirmation to your question?
DIAG. TROUBLE CODE 25/26 FOR 93 SC400
There is a DLC1 under the hood. It’s a small black box with a cap covered located at the front left of the engine.
1. Warm up the engine to normal operating temperature
2. Connect terminal TE1 and E1 with a paper clip.
3. With a voltmeter, connect positive probe to terminal VF1, VF2 and negative probe to terminal E1 of the DLC1. Probe VF1 and E1 then VF2 and E1.
4. Warm up the oxygen sensor by running engine at 2,500 rpm for about 2 minutes.
5. Then, maintain engine at 2,500 rpm, count how many times needle of volt meter fluctuates between 0 and 5 V.
Results
Needle fluctuates 8 times OK
Continue at 0 V NG type I
Continue at 5V NG type II
Check Voltage between terminals OX1, OX2 and E1 of DLC1.
NG type I
1. Engine still at normal operating temperature.
2. Measure voltage between terminal OX1, OX2 and E1 of DLC1 when engine suddenly race to full throttle.
3. The voltage should be 0.5 V or higher at least once----OK
Need to perform this inspection within 1 sec.
NG type II
There are too much in formation to type in here. Need the whole repair manual.
There is another check for oxygen sensor
1. Start engine and warm up
2. After engine is warm up, let it idle for 3 min.
3. With A/C ON and trans. In D position (O/D ON) perform gradual acceleration within the range 1,300-1,700 rpm (centered around 1,500 rpm)
(Take care that the engine speed does not fall below 1,200 rpm when shifting. Gradually depress the accelerator pedal and kept it steady so that engine breaking does not occur.)
4. Maintain the vehicle speed at 40-50 mph (64-80 km/h)
5. keep the vehicle running for 1-2 min. after starting acceration.
HINT: If a malfunction exists, the malfunction indicator lamp will light up after approximately 60 sec. from start of acceleration.
NOTICE: If the conditions in this test are not strictly follow. Detection of malfunction will not be possible.
Good Luck and let us know the results.
Have you find out what the trouble code no. yet? No confirmation to your question?
DIAG. TROUBLE CODE 25/26 FOR 93 SC400
There is a DLC1 under the hood. It’s a small black box with a cap covered located at the front left of the engine.
1. Warm up the engine to normal operating temperature
2. Connect terminal TE1 and E1 with a paper clip.
3. With a voltmeter, connect positive probe to terminal VF1, VF2 and negative probe to terminal E1 of the DLC1. Probe VF1 and E1 then VF2 and E1.
4. Warm up the oxygen sensor by running engine at 2,500 rpm for about 2 minutes.
5. Then, maintain engine at 2,500 rpm, count how many times needle of volt meter fluctuates between 0 and 5 V.
Results
Needle fluctuates 8 times OK
Continue at 0 V NG type I
Continue at 5V NG type II
Check Voltage between terminals OX1, OX2 and E1 of DLC1.
NG type I
1. Engine still at normal operating temperature.
2. Measure voltage between terminal OX1, OX2 and E1 of DLC1 when engine suddenly race to full throttle.
3. The voltage should be 0.5 V or higher at least once----OK
Need to perform this inspection within 1 sec.
NG type II
There are too much in formation to type in here. Need the whole repair manual.
There is another check for oxygen sensor
1. Start engine and warm up
2. After engine is warm up, let it idle for 3 min.
3. With A/C ON and trans. In D position (O/D ON) perform gradual acceleration within the range 1,300-1,700 rpm (centered around 1,500 rpm)
(Take care that the engine speed does not fall below 1,200 rpm when shifting. Gradually depress the accelerator pedal and kept it steady so that engine breaking does not occur.)
4. Maintain the vehicle speed at 40-50 mph (64-80 km/h)
5. keep the vehicle running for 1-2 min. after starting acceration.
HINT: If a malfunction exists, the malfunction indicator lamp will light up after approximately 60 sec. from start of acceleration.
NOTICE: If the conditions in this test are not strictly follow. Detection of malfunction will not be possible.
Good Luck and let us know the results.
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