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Before changing the chip in key coil exciter , you can check for power on pin X
This power comes from the trunk through the troublesome 48 pin connector above the fuel tank , Do not remove but ensure it has a tie wrap on it keeping it closed
The check engine light is going out, This means the car is immobilised. I think I need to change the Security Module, Can anyone tell me where this is located, please?
The BPM is located behind the glove box with the connectors facing away from you
BPM hard reset is at the same time and procedure as the SLCM
Use a trim removal tool or sorts to pull out the big round button / Christmas tree and the unit will slid down out of its carrier
Not a fun job so avoid if you can
Pic if I can find it
The SLCM is above the fuel tank toward the fuel fill cap side and is mounted at a slight angle , keep track of the 4 connectors positions from top to bottom
These connectors can get water in them after a heavy rain if the fuel fill well water drain line is clogged ( common ) would need hard reset to bring the SLCM back to Zero State
Remove the battery positive post on both SLCM and BPM on installation and removal
This is a pic for a right hand steering model
The pin that the BPM provides a ground to close the starter solenoid relay is FC1 - 33 ( Red / Orange wire ) this wire color changes to Green / Orange at the starter solenoid relay
The FC1 - 33 pin to the starter solenoid relay is where 3.2 or 4.0 engine different transmission combo makes a difference
Yes on 12 V ( more like B + which is higher and better to have a load test lamp on it verifying current to power the device ( faulting above fuel tank connector ( BT - 4 ) connection )
Pix X is hard to find as the chip in key RF exciter / decoder / transceiver is left out of prints sometimes , seen the power pin X somewhere before ( B1MCP ? )
Pin X should be easy to identify as the only wire with power on it as you remove connector on the decoder module , 2 wires should go to key barrel exciter coil and 1 to the engine ECU as the enabling immobilizer ( digital )
Thank you for all your help, it really is appreciated.
I need to change my security locking and control module SLCM not the BPM. On the SLCM I change eeprom 93cp46 as this contains my data. The SLCM in in the boot/trunk near the fuel filler. I keep note of the connections and disconnect the battery when I do this.
07-03-2024, 06:25 AM
