Acura P1870: Transmission Component Slipping Malfunction

What Does The Acura P1870 Code Mean?

Condition for setting the DTC:

DTC P0722, P0723, P0742, P0751, P0752, P0753, P0756, P0757, P0758, P1860 and P1870 not set, engine started, then driven to a speed of 15-58 mph, engine speed from 1000-3500 rpm, TP sensor signal from 15-99%, MAP sensor signal from 0-70 kPa.

What Are The Potential Causes Of The Acura P1870 Code?

Below are some potential causes of this DTC:

• Engine speed signal circuit open or shorted (intermittent fault)
• Internal transmission component problem
• TCC PWM or Shift Solenoids have failed (mechanical fault)
• TR switch is damaged, out-of-adjustment or has failed

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Acura TCC solenoid
>>> ZF9HP48 Trans Valve Body 10 Sol # 1094 427 079 Fits Honda Acura And Others

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Acura P1870, DTCDECODE.