I've installed keyless entry in my 1991 camry by tapping into the wires from the door control module under the glove box, however it's not working as planned and wasn't before i installed the keyless entry module either.

For some reason after the drivers door has been shut for a while, the unlocking part of the central locking doesn't work until i manually unlock the drivers door and turn the ignition.

So my question here is, rather than running new wires to all 4 doors would it be possible for me to bypass the central locking part of the door control module and have the keyless module operate it?


These are what the 16 pins say on the circuit board of the door control module:
1. IG - Ignition?
2. DSW
3. MO2
4. MO1
5. PLSW
6. LSW
7. KSW
8. +B - 12V constant
9. PKB
10. MLK
11. MUL
12. KLK
13. PW
14. PWM
15. SP
16. GND - Ground

I have labelled the one's I know.

 

Here is what I have for Toyota door lock module.

8. Recieves 12V from Power circuit breaker.

9. Door Key lock key switch LH-UNLOCK circuit wire
10. Ditto-LOCK wire circuit.


Note: 9 and 10 also connect to RH door key lock switch

11. Door lock control switch LH-UNLOCK wire
Note: The LOCK wire ties into #10

5. Front RH door lock soleniod switch. Tells control module if lock is open or closed.
6. Front LH Ditto

3. Goes to all door lock solenoid coils. Changing polariy in 3 and 4 wires changes lock operation direction.
4. Goes to all door lock solenoid coils.

15. Goes to seat belt reminder relay.

16. Ground.

7. Unlock warning switch on dash.

2. Front LH door courtesy switch.
14. Front RH door courtest switch.

5. Front RH dool lock soleniod switch.

You might try to get the system to work manually before installing the remote.
Check the wiring between the drivers door and chassis for damage due to flexing.

The Toyota module has timers which limit the amount of time the door lock solenoid is on. This provides the quick and short locking action. Eliminating the Toyota module will eliminate these timers which might result in issues with the solenoids.

Most problems are due to wiring issues, broken, shorted wires.

 

I've checked all wires, nothing appears wrong with them.

Also i disconnected the wires to each door one at a time and there's still no unlocking when the drivers door is closed. Maybe the door control module is the problem?

 

The later manual has a wiring diagram with explaination of operation and shows the IG connection.

Send a private message with email address and will send it.