Reading Off Parameters, Immobilizer

Indicates whether the central electronic module (CEM) has received a key code (Transponder ID code). This applies whether the key is stored as an approved key or not. YES or NO. However, the key must be of the correct type - intended for this type of Volvo.

ID CODE STORED Indicates whether the last received key code (transponder ID code) is stored as an approved key code in the central electronic module (CEM) memory. YES or NO.

Indicates whether the central electronic module (CEM) is transmitting a random code to the key which presupposes that the key code is stored. SEND or DO NOT SEND.

Indicates whether the central electronic module (CEM) is receiving a response from the key (via the antenna ring) which presupposes that the key code is stored. YES or NO. YES is also displayed for a key belonging to another car of the same type, with the same key ID but a different security code.

Indicates whether all of the following conditions are fulfilled: 1) Key code (transponder ID code) is stored. 2) The key has the car's security code (the key belongs to the car). 3) Communication (random code and response) is OK. YES or NO.

Indicates whether the ignition key used is a MASTER KEY or a SERVICE KEY

Indicates which of the vehicle's keys is in the ignition switch. Each key programmed into the central electronic module (CEM) is given a serial number from 1 to 6. NO. 1 - NO. 6.

Indicates how many keys (key codes) are stored in the central electronic module (CEM) memory, 1-6. A maximum of six keys can be stored.

Indicates the mode of the immobilizer in the central electronic module (CEM), NORMAL or PROGRAMMABLE. In NORMAL it is not possible to change the content (add/erase key codes) in the immobilizer. In PROGRAMMABLE mode the immobilizer can be programmed (add/erase key codes). In this mode the engine cannot be started.

After a programming has been carried out, appropriate diagnostics tool returns to NORMAL mode.

HINT: If communication problems occur during programming, the central electronic module (CEM) remains in PROGRAMMABLE mode. 

HINT: To correct this, remove fuse 11C/32 from the fusebox in the passenger compartment and reinstall it so the central electronic module (CEM) returns to NORMAL mode again. 

Indicates whether the Control area network (CAN) signal containing Immo ECM data transmitted is received within a given (maximum) time. This signal is transmitted by the engine control module (ECM) to the central electronic module (CEM) on the high speed network, when the ignition is switched on. YES or NO

Indicates whether the Control area network (CAN) signal transmitted by the engine control module (ECM) to the central electronic module (CEM) on the high speed network after an IMMO CHECK is completed, when the ignition is switched on, allows the engine control module (ECM) to be start (POS) the engine or not (NEG). The following conditions must be met before the engine control module (ECM) will allow the engine to be started. The transponder check must have been successful (the key code, transponder ID, is stored and the security codes for the key and the central electronic module (CEM) correspond). The immobilizer check must have been successful (the codes in the central electronic module (CEM) and the engine control module (ECM) correspond).

Indicates the status of the immobilizer's request to the starter motor relay. If the immobilizer permits the relay to connect the starter motor, START POSSIBLE is displayed. IF not, START NOT POSSIBLE is displayed.