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HOMESERVICE MANUALSVOLVO2009C70 AUTOMATICREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSKEYLESS VEHICLE MODULE (KVM) AND PARKING ASSISTANCE MODULE (PAM) - SIGNAL SPECIFICATIONSSIGNAL SPECIFICATION, KEYLESS VEHICLE MODULE (KVM) (2008-2013)SIGNAL SPECIFICATION, KEYLESS VEHICLE MODULE (KVM)
2009 Volvo C70 Automatic
Signal Specification, Keyless Vehicle Module (KVM)
2009 Volvo C70 AutomaticSECTION Signal Specification, Keyless Vehicle Module (KVM)
General
All values given below are between the terminals stated in column 1 and terminal #B4 (power ground). This applies unless otherwise indicated in brackets.
NOTE:
It is important to connect the breakout box and check the ground terminals before taking readings.
| U= | DC voltage in volts (V) | ||
| Ubat = | Battery voltage (V) | ||
| Ulow = | Voltage approximately 0 V |
Connector A
| Connector A | ||||
|---|---|---|---|---|
| Breakout box terminal | Control module terminal | Signal type | Active / Not active | Miscellaneous |
| #C1 | #A1 | Signal cable inner antenna in the passenger compartment (middle) (-) | f=125kHz U=300Vpp The signal is difficult to measure. |
Located under the carpet between the center console and the rear seat. Only active when searching for remote keys. Otherwise 0 V. |
| #C2 | #A2 | Signal cable inner antenna in the passenger compartment (front) (+) | f=125kHz U=300Vpp The signal is difficult to measure. |
Located under the carpet in front of the center panel. Only active when searching for keys. Otherwise 0 V. (-) for the C70. |
| #C3 | #A3 | Signal cable external left-hand antenna (+) | f=125kHz U=300Vpp The signal is difficult to measure. |
For the S40 and V50: Placed in the outer door handle in the left-hand rear door. For the C30 and C70: Placed in the outer door handle in the left-hand front door. (-) for C30 and C70. |
| #C4 | #A4 | Reserve | - | - |
| #C5 | #A5 | Reserve | - | - |
| #C6 | #A6 | Not connected | - | - |
| #C7 | #A7 | Not connected | - | - |
| #C8 | #A8 | Not connected | - | - |
| #C9 | #A9 | Not connected | - | - |
| #C10 | #A10 | Not connected | - | - |
| #C11 | #A11 | Not connected | - | - |
| #C12 | #A12 | Not connected | - | - |
| #C13 | #A13 | Not connected | - | - |
| #C14 | #A14 | The signal cable external right-hand antenna (-) | f=125kHz U=300Vpp The signal is difficult to read |
For the S40 and V50: Placed in the outer door handle in the right-hand rear door. For the C30 and C70: Placed in the outer door handle in the right-hand front door. (+) for C30 and C70. Only active when searching for remote keys. Otherwise 0 V. |
| #C15 | #A15 | Signal cable external left-hand antenna (-) | f=125kHz U=300Vpp The signal is difficult to measure. |
For the S40 and V50: Placed in the outer door handle in the left-hand rear door. For the C30: Placed in the outer door handle in the left-hand front door. (+) for C30 and C70. Only active when searching for remote keys. Otherwise 0 V. |
| #C16 | #A16 | Reserve | - | - |
| #C17 | #A17 | Signal cable inner antenna in the passenger compartment (middle) (+) | f=125kHz U=300Vpp The signal is difficult to measure. |
Located under the carpet between the center console and the rear seat. Only active when searching for remote keys. Otherwise 0 V. |
| #C18 | #A18 | Signal cable inner antenna passenger compartment (front) (-) | f=125kHz U=300Vpp The signal is difficult to measure. |
Located under the carpet in front of the center panel. Only active when searching for keys. Otherwise 0 V. (+) for C70. |
| #C19 | #A19 | Reserve | - | - |
| #C20 | #A20 | Reserve | - | - |
| #C21 | #A21 | Signal cable outer antenna rear (+) | f=125kHz U=300Vpp The signal is difficult to read |
Located in the rear bumper. Only active when searching for remote keys. Otherwise 0 V. (-) for the C30. |
| #C22 | #A22 | Signal cable to external antenna rear (-). | f=125kHz U=300Vpp The signal is difficult to measure. |
Located in the rear bumper. Only active when searching for remote keys. Otherwise 0 V. (+) for C30. |
| #C23 | #A23 | The signal cable external right-hand antenna (+) | f=125kHz U=300Vpp The signal is difficult to measure. |
For the S40 and V50: Placed in the outer door handle in the right-hand rear door. For the C30 and C70: Placed in the outer door handle in the right-hand front door. (-) for C30 and C70. Only active when searching for remote keys. Otherwise 0 V. |
Connector B
| Connector B | ||||
|---|---|---|---|---|
| Breakout box terminal | Control module terminal | Signal type | Active / Not active | Miscellaneous |
| #B24 | #B1 | Reserve | - | - |
| #B25 | #B2 | - supply for quick lock left rear (+) | > 10.5 V / < 1.5 V | Active for approximately 0.5 seconds when opening doors. Not C30 and C70. |
| #B26 | #B3 | Supply for quick lock right rear (+) | > 10.5 V / < 1.5 V | Active for approximately 0.5 seconds when opening doors. Not C30 and C70. |
| #B27 | #B4 | Supply for quick lock left front (+) | > 10.5 V / < 1.5 V | Active for approximately 0.5 seconds when opening doors. |
| #B28 | #B5 | Supply for quick lock right front (+) | > 10.5 V / < 1.5 V | Active for approximately 0.5 seconds when opening doors. |
| #B29 | #B6 | Not connected | - | - |
| #B30 | #B7 | Not connected | - | - |
| #B31 | #B8 | Not connected | - | - |
| #B32 | #B9 | Not connected | - | - |
| #B33 | #B10 | Not connected | - | - |
| #B34 | #B11 | Not connected | - | - |
| #B35 | #B12 | Not connected | - | - |
| #B36 | #B13 | Not connected | - | - |
| #B37 | #B14 | Signal cable inner antenna in the passenger compartment (rear) (+) | f=125kHz U=300Vpp The signal is difficult to measure. |
Located under the carpet in the cargo compartment. Only active when searching for remote keys. Otherwise 0 V. (-) for the S40. Spare on C30 |
| #B38 | #B15 | Signal cable inner antenna in the passenger compartment (rear) (-) | f=125kHz U=300Vpp The signal is difficult to measure. |
Only S40 and C70. Located under the carpet in the luggage compartment. Only active when searching for remote keys. Otherwise 0 V. (+) for the S40. |
| #B39 | #B16 | Reserve | - | - |
| #B40 | #B17 | Signal cable inner antenna in the passenger compartment (rear) (-) | f=125kHz U=300Vpp The signal is difficult to measure. |
Only the V50. Located under the carpet in the luggage compartment. Only active when searching for remote keys. Otherwise 0 V. |
| #B41 | #B18 | Not connected | - | - |
| #B42 | #B19 | Not connected | - | - |
| #B43 | #B20 | Not connected | - | - |
| #B44 | #B21 | Not connected | - | - |
| #B45 | #B22 | Not connected | - | - |
| #B46 | #B23 | Not connected | - | - |
Connector C
| Connector C | ||||
|---|---|---|---|---|
| Breakout box terminal | Control module terminal | Signal type | Active / Not active | Miscellaneous |
| #B1 | #C1 | Power supply, quick lock right-hand rear (-) | Ulow | Not C30 and C70. |
| #B2 | #C2 | Power supply, quick lock left-hand rear (-) | Ulow | Not C30 and C70. |
| #B3 | #C3 | Reserve | - | - |
| #B4 | #C4 | Ground terminal | Ulow | - |
| #B5 | #C5 | Power supply | Ubat | - |
| #B6 | #C6 | Not connected | - | |
| #B7 | #C7 | Not connected | - | |
| #B8 | #C8 | Not connected | - | |
| #B9 | #C9 | Not connected | - | |
| #B10 | #C10 | Not connected | - | |
| #B11 | #C11 | Not connected | - | |
| #B12 | #C12 | Not connected | - | |
| #B13 | #C13 | Not connected | - | |
| #B14 | #C14 | Not connected | - | |
| #B15 | #C15 | Not connected | - | |
| #B16 | #C16 | Not connected | - | |
| #B17 | #C17 | Not connected | - | |
| #B18 | #C18 | Reserve | - | |
| #B19 | #C19 | Not connected | - | |
| #B20 | #C20 | Not connected | - | |
| #B21 | #C21 | Reserve | - | |
| #B22 | #C22 | Not connected | - | |
| #B23 | #C23 | Reserve | - | |
Connector D
| Connector D | ||||
|---|---|---|---|---|
| Breakout box terminal | Control module terminal | Signal type | Active / Not active | Miscellaneous |
| #A24 | #D1 | Power supply quick lock left front. | > 10.5 V / < 1.5 V | Active when opening doors |
| #A25 | #D2 | Power supply quick lock right front. | > 10.5 V / < 1.5 V | Active when opening doors. |
| #A26 | #D3 | LS-CAN H | 2.5-4 V The signal is difficult to measure. |
During communication. |
| #A27 | #D4 | LS-CAN L | 2.5-1 V The signal is difficult to measure. |
During communication. |
| #A28 | #D5 | Reserve | - | |
| #A29 | #D6 | Not connected | - | |
| #A30 | #D7 | Not connected | - | |
| #A31 | #D8 | Reserve | - | - |
| #A32 | #D9 | Contact breaker in quick lock left front | Ulow | Open circuit, Grounded when the handle is pulled out to its limit position |
| #A33 | #D10 | Reserve | - | - |
| #A34 | #D11 | Reserve | - | - |
| #A35 | #D12 | Reserve | - | - |
| #A36 | #D13 | Reserve | - | - |
| #A37 | #D14 | Signal cable Remote Keyless Entry (RKE) | 0.5 V / 1.5 V | Serial communication. Signals are difficult to read. |
| #A38 | #D15 | Indication of remote control in the starter module (Key In) | - | Signal from the central electronic module (CEM) when remote key is inserted in the starter module. |
| #A39 | #D16 | Reserve | - | - |
| #A40 | #D17 | Reserve | - | - |
| #A41 | #D18 | Reserve | - | |
| #A42 | #D19 | Reserve | - | |
| #A43 | #D20 | Reserve | - | - |
| #A44 | #D21 | Switch quick lock right rear | f=125kHz U=300Vpp (106 Vrms ) The signal is difficult to measure. |
When fault-tracing the key. Reading taken against corresponding (-) terminal 0 V not active. Not C30 and C70. |
| #A45 | #D22 | Switch quick lock right front | Ulow | Open circuit, Grounded when the handle is pulled out to its limit position |
| #A46 | #D23 | Reserve | - | - |
Connector E
| Connector E | ||||
|---|---|---|---|---|
| Breakout box terminal | Control module terminal | Signal type | Active / Not active | Miscellaneous |
| #A1 | #E1 | Reserve | - | - |
| #A2 | #E2 | Outer lock button right front | Ulow | Open circuit. Indicates ground connection when button is depressed. |
| #A3 | #E3 | Contact breaker at clutch pedal | Ulow | Closes when the clutch pedal is depressed to 75% of length of stroke. |
| #A4 | #E4 | Switch unlocking left rear | Ulow | Open circuit. Indicates ground connection when pulling out the external door handle. Not C30 and C70. |
| #A5 | #E5 | Outer lock button right rear | Ulow | Open circuit. Indicates ground connection when button is depressed. Not C30 and C70. |
| #A6 | #E6 | Not connected | - | |
| #A7 | #E7 | Not connected | - | |
| #A8 | #E8 | Not connected | - | |
| #A9 | #E9 | Not connected | - | |
| #A10 | #E10 | Not connected | - | |
| #A11 | #E11 | Not connected | - | |
| #A12 | #E12 | Not connected | - | |
| #A13 | #E13 | Not connected | - | |
| #A14 | #E14 | Contact breaker at brake pedal. | 0 V / 5V | Signal from the central electronic module (CEM) when brake pedal is depressed. |
| #A15 | #E15 | Switch quick lock left rear | Ulow | Open circuit. Grounded when the handle is pulled out to its limit position. Not C30 and C70. |
| #A16 | #E16 | Reserve | - | - |
| #A17 | #E17 | External lock button left rear | Ulow | Open circuit. Indicates ground connection when button is depressed. Not C30 and C70. |
| #A18 | #E18 | Switch unlocking luggage compartment lid | Ulow | Open circuit. Indicates ground connection when pulling out the external door handle. |
| #A19 | #E19 | Outer lock button left front | Ulow | Open circuit. Indicates ground connection when button is depressed. |
| #A20 | #E20 | Switch unlocking right rear. | Ulow | Open circuit. Indicates ground connection when pulling out the external door handle. Not C30 and C70. |
| #A21 | #E21 | Switch unlocking left front. | Ulow | Open circuit. Indicates ground connection when pulling out the external door handle. |
| #A22 | #E22 | Switch unlocking right front. | Ulow | Open circuit. Indicates ground connection when pulling out the external door handle. |
| #A23 | #E23 | Reserve | - | |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.