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P1560

Cruise Control System Transaxle Not In Drive.

  • Cadillac
  • Powertrain
  • Manufacturer code
  • Low severity

How this code is built

P
SystemPowertrain
1
Defined byThe manufacturer
5
AreaVehicle speed, idle control and auxiliary inputs
60
FaultThe specific fault in that area

What it means

On Cadillac models, P1560 means the cruise control system has seen that the transaxle is not in a drive gear while cruise control was being requested or was active. The control module compares the gear selector or transmission range signal with the cruise control request and flags a fault when they do not agree. The exact signal and circuit used vary by model and year.

Symptoms

  • Cruise control will not engage or drops out unexpectedly
  • Cruise control indicator or driver information message showing a fault
  • Check engine or service warning light on
  • Gear indicator on the dash not matching the selector position
  • Possible harsh or odd shifting if the range signal is also wrong

Possible causes

  • Faulty or misadjusted transmission range switch (park/neutral position or gear selector switch) giving a wrong range signallikely
  • Selector cable or linkage out of adjustment so the switch does not match the lever positionlikely
  • Damaged wiring, corroded terminals or poor connector contact in the range switch circuitpossible
  • Fault in the cruise control or brake switch circuits that confuses the cruise logicpossible
  • Transmission or powertrain control module fault, or a software issue where a known update exists for the modelrare
  • Internal transmission fault affecting the range or position signalrare

How to diagnose

  1. Read all stored and pending codes and note freeze frame data, checking for other transmission, brake switch or cruise codes
  2. Confirm the fault by trying cruise in a drive gear and see whether it recurs
  3. Compare the displayed gear position on the dash and in live data with the actual selector position through every range
  4. Visually inspect the range switch, selector cable and linkage for damage, looseness or wrong adjustment
  5. Inspect the wiring and connectors at the range switch and control modules for corrosion, chafing or water ingress
  6. Check the range switch signals against the manufacturer's specification using live data or a meter, as values depend on the model
  7. Check the brake switch and cruise control switch operation and circuits
  8. Check for any applicable software updates for the model once wiring and switches have been proven good

How to fix

  • Adjust the selector cable or linkage to the manufacturer's specification
  • Replace the faulty transmission range switch
  • Repair or replace damaged wiring and clean or replace corroded connectors
  • Replace a faulty brake or cruise control switch if proven defective
  • Update the control module software only if an applicable update exists, or repair or replace the module if proven faulty

Can I keep driving?

Low severity

The car is normally safe to drive, but cruise control may not work. Book it in soon, especially if the gear indicator or shifting also seems wrong, as that could point to a range switch fault that affects starting or shifting.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.

This code for other makes

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