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 MANUALSLEXUS2012CT 200H L4-1.8L (2ZR-FXE) HYBRIDREPAIR AND DIAGNOSISWINDOWS AND GLASSWINDOWSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESJAM PROTECTION FUNCTION DOES NOT OPERATE
2012 Lexus CT 200h L4-1.8L (2ZR-FXE) Hybrid
Jam Protection Function Does Not Operate
2012 Lexus CT 200h L4-1.8L (2ZR-FXE) HybridSECTION Jam Protection Function Does Not Operate
WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: Jam Protection Function does not Operate
- Jam Protection Function does not Operate
DESCRIPTION
This symptom may occur for any of the windows.
The jam protection function operates within a specified range during the manual up or auto up operation.
INSPECTION PROCEDURE
NOTICE:
If a power window regulator motor assembly has been replaced with a new one, initialize the power window control system Initialization.
PROCEDURE
1. PERFORM INITIALIZATION (APPLICABLE LOCATION)
(a) Initialize the power window regulator motor assembly (applicable location) Initialization.
NEXT -- Continue to next step.
2. CHECK POWER WINDOW CONTROL SYSTEM (AUTO UP/DOWN FUNCTION)
(a) Check if the power window auto up and down functions operate normally Operation Check.
OK:
Auto up and down functions are normal.
NG -- GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) Problem Symptoms Table
OK -- Continue to next step.
3. CHECK JAM PROTECTION FUNCTION OPERATING RANGE
(a) Check if the jam protection function operates normally for the applicable power window.
HINT
The jam protection function will not operate within 4 mm (0.157 in.) of the fully closed position.
OK:
Jam protection function operates normally.
Result:
B -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side or Front Passenger Side) Removal
C -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Side or Rear RH Side) Removal
A -- END (PROBLEM DUE TO INITIALIZATION FAILURE)
RENDER: 1.0x
NO RELATED
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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.