Operation CHARM: Car repair manuals for everyone.

Component Tests and General Diagnostics





KEYLESS CONTROL MODULE INSPECTION

1. Remove the following parts:
a. Passenger-side front scuff plate Front Scuff Plate Removal/Installation

b. Passenger-side front side trim Front Side Trim Removal/Installation

c. Grove compartment Service and Repair

d. Passenger-side lower panel Lower Panel Removal/Installation

2. Measure the voltage according to the terminal voltage table.

- If the voltages cannot be verified as indicated in the terminal voltage table, inspect the parts under "Inspection item (s)".

- If the system does not work normally even though the inspection items or related wiring harnesses do not have any malfunction, replace the keyless control module.

Terminal Voltage Table (Reference)





















*1
MTX
*2
ATX
*3
5HB

Generated pulse (reference)

Pattern 1





- Terminal:

- Starter relay: 2F (+) -> body ground (-)
- Starter relay: 3B (+) -> body ground (-)

- Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range

Pattern 2





- Terminal:

- Starter relay: 2F (+) -> body ground (-)
- Starter relay: 3B (+) -> body ground (-)
- Starter cut relay/TR switch: 3T (+) -> body ground (-)

- Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range

Pattern 3





- Terminal:

- Door lock-link switch (driver's door): 4U (+) -> body ground (-)

- Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range