2000 Camery Check Engine Lamp Help
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2001 Camery Check Engine Lamp Help
Guys
My wife's 2001 Camery (4cyl) popped the check engine lamp. Showed code P1135. Downstream O2 (denso 234-4137)looked dead/slow so I replaced. No good code comes right back on.
Is their a known issue someone could help me with? Perhaps something to do with the heated circuit (checked fueses, the ones I could find that is).
Thanks!
My wife's 2001 Camery (4cyl) popped the check engine lamp. Showed code P1135. Downstream O2 (denso 234-4137)looked dead/slow so I replaced. No good code comes right back on.
Is their a known issue someone could help me with? Perhaps something to do with the heated circuit (checked fueses, the ones I could find that is).
Thanks!
Last edited by tommyd11730; Aug 12, 2016 at 02:59 PM. Reason: Edit model year
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Posts: 15,178
From: PTW
Did you replace the sensor with the exact same part number?
Check resistance between the Heater terminal and the B+ terminal of the sensor. Purple/blue and Black/yellow wires of harness.
Should be 0.8-1.4 ohm at 68F.
Do the same for the other sensor. Green and white or blue wires.
Check for 9-14v at the same green wire at the ECU. Upper right corner of the far left plug when looking at harness end of plug.
Check resistance between the Heater terminal and the B+ terminal of the sensor. Purple/blue and Black/yellow wires of harness.
Should be 0.8-1.4 ohm at 68F.
Do the same for the other sensor. Green and white or blue wires.
Check for 9-14v at the same green wire at the ECU. Upper right corner of the far left plug when looking at harness end of plug.
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Thank you for your reply.
I replaced the original (30k miles on car) downstream sensor with the denso one listed. Supposedly it is for California emissions applications.
I'm going to put a better scan tool on it tonight. However for my own info the code generated is for preheating, correct? Also if I may ask where is the ECU located on a 2000 Camery?
Thanks!
QUOTE=toyomoho;93702]Did you replace the sensor with the exact same part number?
Check resistance between the Heater terminal and the B+ terminal of the sensor. Purple/blue and Black/yellow wires of harness.
Should be 0.8-1.4 ohm at 68F.
Do the same for the other sensor. Green and white or blue wires.
Check for 9-14v at the same green wire at the ECU. Upper right corner of the far left plug when looking at harness end of plug.[/QUOTE]
I replaced the original (30k miles on car) downstream sensor with the denso one listed. Supposedly it is for California emissions applications.
I'm going to put a better scan tool on it tonight. However for my own info the code generated is for preheating, correct? Also if I may ask where is the ECU located on a 2000 Camery?
Thanks!
QUOTE=toyomoho;93702]Did you replace the sensor with the exact same part number?
Check resistance between the Heater terminal and the B+ terminal of the sensor. Purple/blue and Black/yellow wires of harness.
Should be 0.8-1.4 ohm at 68F.
Do the same for the other sensor. Green and white or blue wires.
Check for 9-14v at the same green wire at the ECU. Upper right corner of the far left plug when looking at harness end of plug.[/QUOTE]
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Joined: Jan 2008
Posts: 15,178
From: PTW
The upstream and downstream appear to be the same part number. Thus you can compare resistance, etc.
The ECU is located under passengers side of the dash. If checking it. For access remove the glove box door, the lower finish panel under the door and the glove box itself.
There may be a yellow harness, if so this is for the air bag. If needing to unplug this harness disconnect the battery and wait 90 seconds first. If you need to turn on the ign to check for ECU voltage, reconnect the plug first or the air bag light will come on noting a fault.
The ECU is located under passengers side of the dash. If checking it. For access remove the glove box door, the lower finish panel under the door and the glove box itself.
There may be a yellow harness, if so this is for the air bag. If needing to unplug this harness disconnect the battery and wait 90 seconds first. If you need to turn on the ign to check for ECU voltage, reconnect the plug first or the air bag light will come on noting a fault.
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I edited my OP to a 2001 model year. Hey with 30k miles we don't drive it much.
Something of interest. The underhand fuse box has a location for a heated O2 sensor fuse. There are no wires in the box. Same goes for a heated relay.
We are the original owners, the CEL is something new.
Something of interest. The underhand fuse box has a location for a heated O2 sensor fuse. There are no wires in the box. Same goes for a heated relay.
We are the original owners, the CEL is something new.
The upstream and downstream appear to be the same part number. Thus you can compare resistance, etc.
The ECU is located under passengers side of the dash. If checking it. For access remove the glove box door, the lower finish panel under the door and the glove box itself.
There may be a yellow harness, if so this is for the air bag. If needing to unplug this harness disconnect the battery and wait 90 seconds first. If you need to turn on the ign to check for ECU voltage, reconnect the plug first or the air bag light will come on noting a fault.
The ECU is located under passengers side of the dash. If checking it. For access remove the glove box door, the lower finish panel under the door and the glove box itself.
There may be a yellow harness, if so this is for the air bag. If needing to unplug this harness disconnect the battery and wait 90 seconds first. If you need to turn on the ign to check for ECU voltage, reconnect the plug first or the air bag light will come on noting a fault.
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