Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2014GRAND CHEROKEE LAREDO, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 25 (5.7L - DTCS P0630 TO P2128)DIAGNOSIS AND TESTINGP1593-SPEED CONTROL SWITCH 1/2 STUCKDIAGNOSTIC TEST
2014 Jeep Grand Cherokee Laredo, AWD
Diagnostic Test
2014 Jeep Grand Cherokee Laredo, AWDSECTION Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- ACTIVE DTC NOTE:
This fault indicates that the Speed Control Switch is stuck in a pressed state for two minutes.
- Cycle the ignition off, and back on.
- With the scan tool, view DTCs.
Is the DTC still active after cycling the ignition off and on?
Yes
- Replace the Speed Control Switch in accordance with the service information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Go To 2
- SPEED CONTROL SWITCH
- With the scan tool, erase DTCs.
- Press and release the ON/OFF button. Monitor the scan tool for a minimum of two minutes for the DTC to return before continuing.
- Press and release the CANCEL button. Monitor the scan tool for a minimum of two minutes for the DTC to return before continuing.
- Press and release the SET - button. Monitor the scan tool for a minimum of two minutes for the DTC to return before continuing.
- Press and release the SET + button. Monitor the scan tool for a minimum of two minutes for the DTC to return before continuing.
- Press and release the RESUME button. Monitor the scan tool for a minimum of two minutes for the DTC to return before continuing.
Did the DTC return after any of the button presses?
Yes
- Replace the Speed Control Switch in accordance with the service information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.