B1439

B1439 - Phone Switch Stuck

For a complete wiring diagram, refer to.

• When Monitored: With the ignition on.

• Set Condition: The hands free phone module detects the phone switch active for greater than 20 seconds.






Test Step 1 - Check for an Active DTC

• Turn the ignition ON.

• With the scan tool, record and erase any DTCs.

• Press the phone switch three times.

• With the scan tool, check for DTCs.

Does the scan tool display this DTC as active?

Yes

• Replace the radio.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Test complete.