AO Gold Member
Join Date: May 2008
Location: United Kingdom
County: Perth and Kinross
The mrs took the 156 to town earlier today, and it wouldn't start when she got back to it a few minutes later.
Recovered it tonight, and it's throwing up a U1600 fault:
Failed Component Code: Immobiliser
Fault Symptom: Signal Not Plausible
Warning Lamp Status: Warning Lamp Illuminated
Fault Test State: Test complete for this Error or not applicable.
Fault Code Storage State: Error Present at time of request
Event Count: 64 count
Filter Count: 0 count
Environmental Condition One: Immobiliser: Not ok
Environmental Condition One: Immobiliser: Code received
Environmental Condition One: Immobiliser: Key code ok
Environmental Condition One: Immobiliser: Non Virgin Ecu
Environmental Condition One: Immobiliser: Engine start enabled
Environmental Condition One: Immobiliser: Universal code not received
Environmental Condition Two: Battery Voltage: 13.16 volts
In addition to this, the immobiliser sensors in the ECU show:
Immob-No Code Received: False
Immob-Code Unknown: False
Immob-Erroneous Key Code: True
Immob-Engine Start Disabled: True
Immob-Virgin ECU: False
Immob-Universal Code Received: False
Immob-Separate Line Used: True
The lines that jump out are the 'universal code not received' and 'erroneous key code'.
In addition to this, possibly unrelated, the alarm wasn't very keen to deactivate (and unlock the doors). It did have a low battery at that point though.
I'm thinking it's possibly the ignition barrel antenna, or a battery-disconnect procedure.
So...any other ideas anyone? I have (I think) a complete code/ecu/key set (somewhere). If I resort to changing the modules, exactly which ones do I need to swap?
Last edited by iainfm; 18-01-10 at 19:38.