02 CAmry codes P1120 & P1121
My daughter's 02 Camry just started getting these 2 codes. Symptoms are a slow response when the throttle pedal is pressed. I read somewhere else to check voltages at the TPS on the pedal. However, that post was 4 years ago and the individual never reposted the voltage. Hopefully, someone one can help. Below are the voltages I got from back probing the TPS. all measurement taking with the key switch on. Just want to make sure its the TPS.
VPA/Blue-yellow wire - Pedal at idle no voltage. Pushing down on pedal voltage climbs to 3.28 VPA2/White-Red - Pedal at idle voltage read 1.54 detected. Pushing down on pedal voltage climbs to 4.21. VCP/Red wire & VCP2/ Black-Red - 5.1 voltage at all pedal positions. |
this a 4 or a V6
now need someone with the repair manual data to verify readings this site you have to scroll though every page of the 2001 camry pdf to find information required http://manuals.co/workshop/toyota/camry 02 toyota camry e manuals and most other repair manual sites are not free haynes US online download https://haynes.com/en-us/toyota-camr...-online-manual |
It's a V6
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All the TPS troubleshooting I see deals with the TPS on the throttle body. This car may have a sensor on the throttle body, but it also has a sensor on the accelerator pedal as well and that the one I tested.
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P1121 = APS sensor faulty. Harness has open, short or poor conductivity.
P1120 means ECU has shut down power to throttle motor. VPA voltage Released 0.4-1.2v Depressed 3.0-4.6v VPA2 0.9-2.3v 3.4-5.0v The pedal has two potentiometers gained together (VPA and VPA2 are the wipers). No power at VPA released means a problem. |
1 Attachment(s)
thanks ...found the pedal sensor picture
too much electronics on cars these days |
Originally Posted by toyomoho
(Post 94649)
P1121 = APS sensor faulty. Harness has open, short or poor conductivity.
P1120 means ECU has shut down power to throttle motor. VPA voltage Released 0.4-1.2v Depressed 3.0-4.6v VPA2 0.9-2.3v 3.4-5.0v The pedal has two potentiometers gained together (VPA and VPA2 are the wipers). No power at VPA released means a problem. |
Based on the criteria provided by Toyota yes.
P1121 is the actual trouble code. See list of possible faults in your above post. P1120 is a response to P1121. This being the ECU shut down power throttle motor. |
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