FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Signal Missing






Signal missing

Checking the power supply and ground terminal




- Ignition off.
Check the cable between central electronic module (CEM) #H6 (#20) and Remote Receiver Module (RRX) #A1 for open circuit.
Check the signal cable between central electronic module (CEM) #H3 (#17) and Remote Receiver Module (RRX) #A2 for open circuit, short-circuit to ground, and short-circuit to voltage.
Check the cable between Remote Receiver Module (RRX) #A3 and ground for open circuit. Also check the ground connection for oxidation.
Remedy the cables as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM)
- Signal description Central Electronic Module (CEM) Signal Description, Central Electronic Module (CEM)
- Checking wiring and terminals Checking Wiring and Terminals









Was a fault detected?

Yes - Verification

No - Checking communication

-------------------------------------------------

Checking communication




- Ignition off.
Check if the communication with remote receiver (RRX) works by locking and unlocking the vehicle with the remote control's buttons.

Is the function OK?

Yes - Verification

No - Replacing the control module

-------------------------------------------------

Replacing the control module




- Ignition off.
If no fault is discovered on the cables for the remote control receiver (RRX), the unit will probably need to be replaced.

Other information





Continue - Verification

-------------------------------------------------

Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reinstall the connectors, components etc.
Check if the communication with remote receiver (RRX) works by locking and unlocking the car with the remote control's buttons.

Is the function OK?

Yes - VERIFIED

No - VERIFICATION FAILED

------------------------

VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

-------------------------------------------------

Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test

------------------------

Attempt New Test - Checking the power supply and ground terminal

-------------------------------------------------