Faulty Signal. Intermittent Fault
Faulty signal. Intermittent fault
Checking for contact resistance, oxidation and checking wiring
Hint: The phone module is connected to the telephone antenna via a connector in the right A-pillar.
- Ignition off.
Check the antenna cable between phone module connector F (brown) and connector E (terminal 2) in the right A-pillar for open circuit, loose connection and short circuit to supply voltage.
Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults
Other information
- Phone module (PHM), replacing Service and Repair
- Antenna carphone, replacing
- Connecting the breakout box. Carphone module Connecting the Breakout Box
- Signal description. Phone module (PHM) Signal Description, Phone Module (PHM)
Was a fault detected?
Yes - Fault-tracing information
No - Checking the connectors and wiring
-------------------------------------------------
Fault-tracing information
Information
Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).
Do you want to view the information again?
Yes - Attempt New Test
No - Fault Found
------------------------
Attempt New Test - oxidation and checking wiring
FAULT FOUND - Fault Found
DONE - DONE
-------------------------------------------------
Checking the connectors and wiring
Raise the secondary lock on the connector in the right A-pillar.
Loosen the primary lock and remove the insulator.
Carefully remove the antenna from the headlining.
Measure the resistance between the signal line and screen ground on the connector. The resistance must be approximately 0 ohms.
Measure the resistance between screen ground and ground. The resistance must be infinite.
Carefully remove the three screws that hold the antenna's circuit board.
Carefully lift up the circuit board from the mounting point so that there is no contact between the circuit board and the casing.
Measure the resistance between the signal line and screen ground. The resistance must be infinite. If the resistance is infinite there is a short-circuit between the signal line and screen ground.
Remedy as necessary.
Other information
- Antenna carphone, replacing
- Connectors, repair Connectors, Repair
- Checking wiring and terminals Checking Wiring And Terminals
Was a fault detected?
Yes - Fault-tracing information
No - Information
-------------------------------------------------
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 - FAULT-TRACING FAILED
No - Attempt New Test
------------------------
FAULT-TRACING FAILED - FAULT-TRACING FAILED
Attempt New Test - oxidation and checking wiring
-------------------------------------------------