On 2007 mazda cx 9 grand touring is red KEY sign on

30

Asked by Nov 08, 2014 at 09:56 PM about the 2007 Mazda CX-9 Grand Touring AWD

Question type: Maintenance & Repair

I can't use the fobs in doors for locking and unlocking. They told me to change rear keyless entry antenna. I did but the sign is still on? What should I do?

12 Answers

19,340

Red key light usually means the battery in the fob needs to replaced.

1 of 1 people found this helpful.
Best Answer
30

I changed the battery already!

19,340

Ok, not being a smart butt here, is the battery installed correctly? Are the metal contacts that hold the battery damaged in any way?

1 of 1 people found this helpful.
30

Smart key works but not the buttons on the doors for locking and unlocking?

1 of 1 people found this helpful.
19,340

So you can start the car but the lock, unlock, trunk and alarm buttons on the key fob do not work? Am I correct?

2 of 2 people found this helpful.
30

From outside there are buttons on the doors for locking and unlocking doors without bringing the key out.

1 of 1 people found this helpful.
19,340

Ahhh ok sounds like the fob needs to be reprogrammed. The car can't tell that the proximity key is present so it won't unlock the doors.

30

How?

19,340

unfortunately dealer only

30

Mechanics gave me code B1131

19,340

Did they tell you what that code is? Or is that he code for the antenna?

1 of 1 people found this helpful.
30

Is circuit failure. Just Google it

1 of 1 people found this helpful.

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