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DTC codes / Chrysler codes / P1570

P1570 · ChryslerCruise Control System Traction Control Active

P1570 on Chrysler vehicles indicates that the powertrain control module (PCM) has detected a conflict or communication issue between the cruise control system and the traction control system, often when both are active or requested simultaneously. The PCM sets this code when it sees an unexpected signal or condition that prevents the cruise control from engaging or maintaining speed while traction control is intervening.

SystemPowertrain
Code typeChrysler specific
SeverityLow
Fix difficultyIntermediate
AreaVehicle speed, idle control and auxiliary inputs

Symptoms you may notice

  • Cruise control may not engage or may disengage unexpectedly when traction control activates
  • Traction control warning light or cruise control indicator may illuminate or flash
  • The vehicle may exhibit reduced power or hesitation during acceleration if traction control is active
  • Often no symptoms besides the warning light, especially if the fault is intermittent
  • The cruise control may resume functioning after the vehicle is restarted, but the code remains stored

Common causes, most likely first

  1. Faulty or contaminated wheel speed sensor causing erratic traction control signals
  2. Wiring damage or corrosion in the cruise control switch circuit or traction control module connectors
  3. Malfunctioning cruise control switch or button assembly on the steering wheel
  4. ABS (anti-lock braking system) module or traction control module internal fault
  5. PCM software issue or corrupted calibration requiring reflash
  6. Brake pedal position sensor misalignment or failure, affecting both cruise and traction control inputs
  7. Throttle actuator control motor or circuit issue causing conflicting signals between systems

How to diagnose and fix it

  1. Scan all modules for related codes, especially in the ABS and PCM, to identify the root cause before replacing parts
  2. Inspect and test wheel speed sensors and their wiring for damage, corrosion, or debris, and clean or replace as needed
  3. Check the cruise control switch and wiring for continuity and proper resistance, repairing any opens or shorts
  4. Verify brake pedal position sensor operation and adjustment, replacing if faulty
  5. Inspect connectors at the ABS module and PCM for corrosion or loose pins, and repair as necessary
  6. If all else checks out, reprogram the PCM with the latest software calibration from Chrysler
  7. As a last resort, replace the ABS module or PCM if internal faults are confirmed by diagnostic testing

Cruise Control and Traction Control Interaction

  • This code often sets when the traction control system activates while cruise control is engaged, and the PCM sees an unexpected signal from the ABS module; it does not always indicate a hard failure.
  • A common misdiagnosis is replacing the cruise control switch when the real problem is a dirty or failing wheel speed sensor that sends erratic signals to the traction control system.
  • On some Chrysler models, a weak battery or charging system issue can cause communication faults between modules, setting P1570 without any component failure.
  • The code may be stored as history only and not turn on the check engine light; always check for pending or history codes in the ABS module as well.
  • After repairs, the code may require a drive cycle with cruise control activation and traction control event to verify the fix, so do not assume the repair failed if the light stays on immediately.

Can I keep driving with P1570?

The vehicle is generally safe to drive because the fault primarily affects cruise control and traction control convenience features, but avoid using cruise control in slippery conditions or heavy traffic until the issue is resolved. If the traction control warning light is on, drive cautiously and be prepared for reduced traction assistance.

Tools that help

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Guidance is general and written for Chrysler vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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