Daihatsu SP-4 P0857 Code:

OBD-II Diagnostic Powertrain (P) Trouble Code

Trouble In Daihatsu SP-4 P0857 Possible Cause

The most common causes of this Daihatsu SP-4 P0857 code being stored are due to a defective input speed sensor or output speed sensor. Other common causes include shorted, open, corroded, or damaged wiring circuits or connectors.

Common Symptoms For Daihatsu SP-4 P0857

  1. Intermittent conditions can prove to be quite a challenge to diagnose and in extreme cases may have to be allowed to worsen before a correct diagnosis can even be attempted
  2. Unlike other diagnostic codes, this type of code can sometimes be best left to a professional simply because of the bulk of circuitry involved
  3. If the initial resistance is within specifications, leave the leads of the digital volt/ohmmeter connected and heat the resistor with a heat gun
  4. Typical causes of low pump pressure include clogged hydraulic passages, a defective pump, faulty shift solenoids, or a faulty electronic pressure regulator

Similar Problems

Computer And Auxiliary Outputs
Low Coolant Circuit
PCM Stack Overrun

Daihatsu SP-4 P0857 Troubleshooting

Broken engine mountings can cause banging and graunching noises. There are two main types of mounting those centrally placed close to the bottom of the block and those higher up the block which mount on to the inner wings or chassis members. Daihatsu SP-4 P0857 OBD 2 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

How to turn off Daihatsu SP-4 P0857 check engine light ?

There are two ways to turn off the check engine light:

A repair technician can do so once repairs have been made.
The OBD II can automatically turn it off when it fails to detect the problem after several diagnostic cycles.

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