Circuit/System Testing

Diagnostic A

1. Ignition OFF, disconnect inline harness connector X433. it may take up to 2 min for all vehicle systems to power down.
   NOTE:

   All testing is done at the K23 Folding Top Control Module harness side of the connector.

2. Test for less than 10 Ω between the low reference circuit terminal 7 and ground.
   • If 10 Ω or greater 
   1. Ignition OFF, disconnect the harness connector at the K23 Folding Top Control Module.
   2. Test for less than 2 Ω in the low reference circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K23 Folding Top Control Module.
   • Go to next step: If less than 10 Ω 
3. Ignition ON.
4. Test for greater than 10 V between the signal circuits listed below and ground.
   • B249L Folding Top Tension Bow Down Position Sensor - Left - Signal circuit terminal 1
   • B250 Folding Top Tension Bow Up Position Sensor - Signal circuit terminal 2
   • If less than 10 V 
   1. Ignition OFF, disconnect the X2 harness connector at the K23 Folding Top Control Module.
   2. Test for infinite resistance between the signal circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
   3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K23 Folding Top Control Module.
   • Go to next step: If 10 V or greater 
5. Disconnect the X2 harness connector at K23 Folding Top Control Module.
6. Test for less than 1 V between the signal circuit and ground.
   • If 1 V or greater 

     Repair the short to voltage on the circuit.

   • Go to next step: If less than 1 V 
7. Replace the appropriate B250 Folding Top Tension Bow Up Position Sensor or B249L Folding Top Tension Bow Down Position Sensor - Left.

Diagnostic B

1. Ignition OFF, disconnect inline harness connector X454. it may take up to 2 min for all vehicle systems to power down.
   NOTE:

   All testing is done at the K23 Folding Top Control Module harness side of the connector.

2. Test for less than 10 Ω between the low reference circuit terminal 3 and ground.
   • If 10 Ω or greater 
   1. Ignition OFF, disconnect the harness connector at the K23 Folding Top Control Module.
   2. Test for less than 2 Ω in the low reference circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K23 Folding Top Control Module.
   • Go to next step: If less than 10 Ω 
3. Ignition ON.
4. Test for greater than 10 V between the signal circuit terminal 4 and ground.
   • If less than 10 V 
   1. Ignition OFF, disconnect the X2 harness connector at the K23 Folding Top Control Module.
   2. Test for infinite resistance between the signal circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
   3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K23 Folding Top Control Module.
   • Go to next step: If 10 V or greater 
5. Disconnect the X2 harness connector at K23 Folding Top Control Module.
6. Test for less than 1 V between the signal circuit and ground.
   • If 1 V or greater 

     Repair the short to voltage on the circuit.

   • Go to next step: If less than 1 V 
7. Replace the B249R Folding Top Tension Bow Down Position Sensor - Right.