Inspection Procedure 4

The Electric Convertible Top Opens Or Closes Even At The Vehicle Speed Of 3 Km/h (1.9 Mph) Or More.

Vehicle Speed Sensor Circuit Part 1:

Vehicle Speed Sensor Circuit Part 2:

CIRCUIT OPERATION
When the convertible top switch is operated, a signal is sent to the convertible top control module. The convertible top control module sends convertible top switch "ON" signal to the power window main switch to lower the door windows automatically. The power window main switch lowers the door windows and simultaneously sends the "AUTO DOWN" signal to the convertible top control module. When the "AUTO DOWN" signal is received, the convertible top control module drives the quarter window regulator motor to lower the quarter windows and simultaneously drives the topstack drive motor assembly to operate the electric convertible top.

TECHNICAL DESCRIPTION (COMMENT)
The cause may be a malfunction of the vehicle speed sensor.

TROUBLESHOOTING HINTS
- Malfunction of the vehicle speed sensor
- Damaged harness wires or connectors






















STEP 1. Check harness wires between ignition switch (IG1) and vehicle speed sensor connector B-39 (terminal 1).

NOTE: After inspecting intermediate connector B-36 [M/T], C-28, C-78, C-101, C-104 inspect the wire. If intermediate connector B-36 [M/T], C-28, C-78, C-101, C-104 are damaged, repair or replace it. Refer to Harness Connector Inspection. Then go to Step 4.

Q: Are there any damaged wires between ignition switch (IG1) and vehicle speed sensor connector B-39 (terminal 1)?

YES: Replace it, then go to Step 4.

NO: Go to Step 2.

























STEP 2. Check harness wires between convertible top control module connector F-34 (terminal 13) and vehicle speed sensor connector B-39 (terminal 3).

NOTE: After inspecting intermediate connector B-36 [M/T], C-28, C-77, C-90 inspect the wire. If intermediate connector B-36 [M/T], C-28, C-77, C-90 are damaged, repair or replace it. Refer to Harness Connector Inspection. Then go to Step 4.

Q: Are there any damaged wires between convertible top control module connector F-34 (terminal 13) and vehicle speed sensor connector B-39 (terminal 3)?

YES: Replace it, then go to Step 4.

NO: Go to Step 3.

STEP 3. Check the vehicle speed sensor
Furthermore, check that the vehicle speed sensor operates properly.

Q: Is the vehicle speed sensor damaged?

YES: Replace it, then go to Step 4.

NO: Go to Step 4.

STEP 4. Check the Check symptoms.

Q: Does the electric convertible top open and close normally?

YES: This diagnosis is complete.

NO: Return to Step 1.