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2005 Toyota Corolla Question: my car hesitates on acceleration,

 

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tabiri, Chesapeake, VA, August 23, 2012, 15:09
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Had these codes. P0123 TPS A circuit high input P2103 Throttle actuator control circuit high, P3125 TPS A/B Voltage correlation

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  • Answer #1

    pushrod August 23, 2012, 15:46
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    Will need scanner to ckeck TPS% from closed throttle to wot. KOEO.

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    tabiri, August 24, 2012, 06:43
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    Scanner can read codes but can,t read Data stream. It gives a no communication info. I use snap-on solus pro. When I Erase the DTCs and recheck after i get ( No DTC detected) but the Malfunction indicator Lamp(MIL) will not go off. I have replace the throttle twice.

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    pushrod, August 24, 2012, 08:01
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    What is the code(s) must be hard fault if lamp won't go off. Most all scanners can read
    TPS%.

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    tabiri, August 24, 2012, 08:33
     Rookie

    Thanks for your quick response. please these are the codes:
    P0123 Throttle position sensor switch A circuit high input
    P2103 Throttle actuator control motor high
    P2135 Throttle/Pedal position sensor switch 'A'/'B' voltage correlation.
    When I Erase the scanner shows no faults but the MIL will still be on.
    The fault is intermittent.

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    pushrod, August 24, 2012, 08:48
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    REPLACE TPS.

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    tabiri, August 26, 2012, 12:53
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    Thank you all for your help. I have managed to solve the problem with the Corolla. it was the Electronic control Unit. (ECU)
    I'm most greatful to you all.

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  • Answer #2

    Greg's Orange Auto (13485 Answers) , Orange, CA - (714) 361-9386
    globalhelper August 24, 2012, 05:49
     Master

    seek diag and est to determine problem a scanner will be needed

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