Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSVOLVO2001S40 L4-1.9L TURBO VIN 29 B4204T3REPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTANTITHEFT AND ALARM SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESVEHICLE COMMUNICATION INFORMATIONDESCRIPTION OF IMMOBILIZER PARAMETERS
2001 Volvo S40 L4-1.9L Turbo VIN 29 B4204T3
Description Of Immobilizer Parameters
2001 Volvo S40 L4-1.9L Turbo VIN 29 B4204T3SECTION Description Of Immobilizer Parameters
Description of immobilizer parameters
Transponder communication
Indicates if the communication between the transponder and the control module functioned correctly.
YES or NO
Code stored
Indicates whether the last received key code is stored as an approved code in the control module memory.
YES or NO
Key number
Indicates which key is in the ignition switch. Every key programmed into the control module is allocated a number between 1 and 6.
Query obtained
Displays whether the immobilizer control module is receiving an initiation signal from the engine control module (ECM).
YES or NO
Response
Indicates if the control module has given a positive (OK to start) or negative (not OK to start) response to the engine control module (ECM).
POS or NEG
VGLA output
The value displays the status of control module output #7 to the VGLA control module.
A key stored in the control module memory gives a LOW signal.
LOW or HIGH
Engine
Indicates which engine was selected when programming a new control module.
Immobilizer status
Should always read normal.
NORM
Relay 1
Indicates the status of relay R1 in the control module.
Relay 2
Indicates the status of relay R2 in the control module.
ON or OFF
Security timer
The timer indicates that the control module is locked after multiple failed programming attempts with an incorrect PIN. It starts at 5 minutes and counts down one step every 10 seconds from 30 to 0.
Ignition on
Indicates the number of times the ignition has been switched on in the car if the ignition has been switched off for at least 3 seconds and switched on for at least 4 seconds. The number is updated (by 10) every tenth time the ignition is switched on.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.