P0704 - OBD Trouble Code

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Wondering about a way to treat and accurately diagnose the error code P0704? Well, here’s a little guide by Parts Avatar that’s definitely going to help you. This code is stored when the PCM notes an error in the clutch switch input circuit. Also referred to as the clutch start switch at times because it is essential for it to be closed for the starter to engage. This code is valid for the vehicles that have a manual transmission. By any chance, if this code shows up in a vehicle with an automatic transmission a malfunctioning PCM should be suspected.

The P0704 clutch pedal position switch is generally a closed switch (clutch pedal released). Often an ignition voltage on the clutch switch circuit is detected by the TCM (transmission control module), BCM (body control module), or PCM (powertrain control module) body while the clutch switch is closed. A 0 volts is identified by the control module on the clutch switch circuit when the clutch switch is open (clutch pedal depressed). Also, when the clutch is closed or the clutch is released, a predetermined voltage signal is identified by the control module. The control module further transmits a serial data message to the engine control module (ECM). This DTC is responsible for deciding if the transmission clutch switch has had a failure by looking for a clutch switch transition during a predetermined cycle.

What causes this problem with the Clutch Switch Input Circuit Malfunction?

• A malfunctioning clutch switch
• A clutch switch circuit open or short circuited
• Burnt or distorted wiring or connectors in the clutch switch circuit
• A misadjusted clutch switch

1. Clutch switch - Want to fight the error code P0704? A damaged clutch switch can lead to further complications caused by this code. In order to fix the OBD code P0704 the damaged clutch switch should be changed instantly.
2. Clutch Connectors - Weary and damaged connectors can often be problematic. So, to add some spark to your ride you definitely need the perfect quality connectors offered at Parts Avatar. Isn’t that just the perfect deal?
3. Scanner - Facing the error code P0704? An inferior quality scanner can always be hazardous for the system also it is one of the primal causes behind the occurring of the error code P0704. Tune into Parts Avatar for supreme quality scanner at economical prices.
4. Shift Solenoid - Having problems with the shift solenoid? Don’t you worry, Parts Avatar has it all. A faulty shift solenoid could end up being the root cause behind the error code P0704.
5. Powertrain control module - Abbreviated PCM; this is an integral control unit. So, a defective one should be changed immediately. Tune into Parts Avatar now.
6. Engine Control Module - A distorted engine control module can end up being the chief host inviting the error code P0704. So, replacing one can be one of the wisest decisions to avoid a problematic system.
7. Exhaust Pressure Sensor - Facing the Error P0704? Well, get that fixed with a new exhaust pressure sensor at Parts Avatar available online at the best prices.
8. Exhaust Pressure Control Valve - Still see the error code P0704 flashing? Well, it could be due to your defective exhaust pressure control valve. Replace or repair a defective one now.

Willing to know the symptoms to the OBD code P0704? If yes, then this is just your one stop destination. We at Parts Avatar have listed out few common symptoms associated with Clutch Switch Input Circuit Malfunction

Common Symptoms

• An irregular or sometimes completely failed engine starting
• Decreasing fuel efficiency
• An extremely high engine RPM at idle
• An incorrect traction control system
• On some models the safety functions may fail to work or may work incorrectly

Repairing the switch may just be the most appropriate option if an erroneous or a defective clutch switch is triggering the problem. Although, in a number of cases, the problem can also occur due to misadjusted clutch switch or due to a damage or corrosion in the circuit. The problem can be solved accurately by just repairing the circuit and making sure of the fact that all the connections are properly fit. This could solve the problem easily without needing to change the clutch switch.

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Here listed are a few easy steps which you should follow in order to diagnose this P0704 fault code:

To determine a code P0704, the technician will start by using an OBD-II scanner. He will begin by visually inspecting the wirings and the connectors of the clutch for signs of any damage that may be causing the error. If the wirings and connectors are all working in order, they will next check the clutch switch to make sure it’s properly fit. The problem is most likely with the switch or its adjustment if the switch fails to open or close as the clutch pedal is held down and released. If the code P0704 stills shows up after proper adjustments have been made the switch may need a complete replacement to treat the problem.

Common Mistakes When Diagnosing the P0704 Code

Here listed are a few common mistakes that should be avoided while treating the error code P0704

It is possible for someone to assume that the problem is actually with the starter as the code causes complications with starting the vehicle. It should be noted that making amendments with the starter or the components associated with it may fail to solve the issue or clear the code at all.