B2579

B2579-CONVERTIBLE TOP SWITCH CIRCUIT PERFORMANCE





For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
With the Ignition Switch in the on position and the Power Top Control Module (PTCM) is awake.

- Set Condition:
This code will set when the Convertible Top Switch is pressed for more than 90 seconds.





Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase all PTCM DTC's
Try to operate the Power Top Switch.
Wait 90 seconds.
With the scan tool, read all PTCM DTC's.
Does the scan tool display this DTC as active?

Yes

- Go to 2

No

- The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

2. INSPECT FOR OBJECT OR SUBSTANCE CAUSING THE CONVERTIBLE TOP SWITCH TO STAY OR STICK IN A PUSHED POSITION
Inspect the Convertible Top Switch for anything that would cause the switch to stay or stick in a pushed position.
Is anything present that would cause the Convertible Top Switch to stay or stick in a pushed position?

Yes

- Repair as necessary.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

No

- Go to 3

3. CONVERTIBLE TOP SWITCH
Turn the ignition off.
Disconnect the Convertible Top Switch harness connector.
Turn the ignition on.
With the scan tool, erase all PTCM DTC's.
With the scan tool, check for active PTCM DTC's.
Does the scan tool display this DTC as active?

Yes

- Go to 4

No

- Replace the Convertible Top Switch.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

4. (Q31) CONVERTIBLE TOP SWITCH MUX CIRCUIT SHORTED TO GROUND




Turn the ignition off.
Disconnect the Power Top Module C1 harness connector.
Measure the resistance between Ground and the (Q31) Convertible Top Switch Mux circuit.
Does the ohm meter read open circuit?

Yes

- Replace the Power Top Control Module (PTCM).
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

No

- Repair the (Q31) Convertible Top Switch Mux circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test