Question about 2004 Isuzu Ascender
HOW TO REPAIR
Did you read the FSM first ? seems not. Try Mitchells ?
the book flat tells you what to do. and why,,,, read excerpts here.
0107, ( this is in lay terms, a COMMUNICATIONS failure)
the answers by others above are wrong.!
are you sure its only ONE CODE< if its more, then that
MATTERS BIG TIME. !!!
why not get the car serviced and not play this game.
are you up to computers and networking? My guess not but?????
and can be just a low battery... (main car battery)
so check it first, and all fuses, and then reset it and drive
to see if it comes back. (same with all failures)
This error can happen if one plays with wiring with the battery connected, that means , pulling connectors,or jumpering wires.
never hot wire, any wires on this car, or you will pay.
one can also get this if battery drains dead, light on
or someone jumper cable jump start the car, did you????
I say ,reset it now, and see if it come back.
same answer for all modern cars.. this.
4.2 or 5.2L engine, must we guess this???????
toss coin, 4.2
I pasted of fsm pages. (direct quotes)
DTC U0107 Circuit Description The throttle actuator control (TAC) module and the powertrain control module (PCM) communicate via a dedicated serial data circuit. This serial data circuit is separate from any other serial data circuit on the vehicle. Accurate transmitting and receiving of serial data requires not only good circuit integrity but also adequate system voltage. This diagnostic test monitors the accuracy of the serial data transmitted between the TAC module and the PCM. If the PCM detects a loss of data or invalid data, this DTC sets.
Conditions for Running the DTC
Reprogramming the PCM may cause a communication error between the PCM and the TAC. If the PCM detects a communication error, DTC?U0107 sets. Clear any DTCs from the memory that may have been set by Reprogramming.
This step determines if the ignition relay is supplying a voltage to the ETC fuse.
Increasing the engine speed to 3,000?RPM aids in locating a shorted throttle actuator motor control circuit. Depending on the polarity of the throttle actuator motor transistors, this DTC may not set with a fault in the control circuits. The throttle actuator motor is a bi-directional DC motor. Raising the engine speed changes the polarity of the transistors in the throttle actuator motor. This occurs because 1 set of the transistors are low, 0?volts, and the other set are high, B+. Therefore, if 1 set of transistors are at a low voltage and the corresponding circuit is shorted low, DTC?U0107 will not set. When the polarity of the transistors change, this DTC sets. If this DTC does not fail this ignition, continue to monitor this DTC status while moving related harnesses and connectors.
Locating and repairing an individual condition may correct more than 1 DTC.
Posted on Aug 29, 2016
Usually requires a new throttle actuator which may only be available as part of a throttle body assembly
Posted on Aug 28, 2016
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