Part 1
Reading off diagnostic trouble codes (DTCs), lock and alarm (VGLA)
Query
Connecting
Connecting the Volvo Scan Tool (ST)
The Volvo Scan Tool (ST) must be connected to the VIDA PC and data link connector (DLC) in the passenger compartment.
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Connecting Volvo System Tester
- Ignition off.
Insert the blue memory cassette in the Volvo Scan Tool (ST).
Connect adapter 951 1457 Adaptor 951 1457 Adaptor to the cable 951 1458 Scan tool cable 6 meters 951 1458 Scan Tool Cable 6 Meters.
Connect VIDA communication cable between adapter and VIDA PC.
Connect cable 951 1458 Scan tool cable 6 meters 951 1458 Scan Tool Cable 6 Meters from Volvo Scan Tool (ST) to the data link connector (DLC) in the passenger compartment.
Switch on the Volvo Scan Tool (ST) switch.
Continue - Reading off diagnostic trouble codes (DTCs)
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Reading off diagnostic trouble codes (DTCs)
- Ignition on.
Read off diagnostic trouble codes (DTCs).
Numeric Result 0 - DONE
Numeric Result -8 - Communication problems
Numeric Result -1 - Communication problems
Numeric Result -2 - Communication problems
Numeric Result -3 - Communication problems
Numeric Result -4 - Communication problems
Numeric Result -5 - Communication problems
Numeric Result -6 - Communication problems
Numeric Result -7 - Communication problems
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Communication problems
Communication has been interrupted for one of the following reasons:
- The cable is disconnected
- The Volvo Scan Tool (ST) is disconnected
- Communication problems in the VIDA application
- Check that the adapter is correctly connected to the Volvo Scan Tool (ST).
- Check that the VIDA cable is correctly connected to the adapter junction box and VIDA cart.
- Check that the power cable is correctly connected to the battery and Volvo Scan Tool (ST).
- Ensure that VIDA memory cassette is inserted into the Volvo Scan Tool (ST).
- Check that the junction box switch is on.
- Try to establish communication again or exit reading off diagnostic trouble codes (DTCs).
Depending on the communication fault, select one of the the following alternatives.
1. Try again.
2. Fault-trace the communication problems.
3. Stop fault-tracing.
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Communication problems
Communication has been interrupted for one of the following reasons:
- The cable is disconnected
- Ignition off
The fault could also have been stored by a communication problem when the engine was started.
- Check that the data link connector (DLC) cable is secure.
- Try to establish communication again or exit reading off diagnostic trouble codes (DTCs).
Depending on the communication fault, select one of the the following alternatives.
1. Try again.
2. Fault-trace the communication problems.
3. Stop fault-tracing.
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Checking communication
Checking control module communication
Checking power supply
- Ignition on.
- Volvo Scan Tool (ST) connected to data link connector (DLC).
Power up the Volvo Scan Tool (ST) and check that the display lights
Does the display light?
Yes - Checking communication with the ABS system
No - Checking Volvo Scan Tool (ST)
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Checking communication with the ABS system
- Ignition on.
- Volvo Scan Tool (ST) connected to data link connector (DLC).
Try to establish communication with the ABS system.
Has communication with the ABS system been established?
Yes - Check function
No - Checking communication cable to data link connector (DLC)
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Check function
- Remove key from ignition switch.
Try to lock and unlock the car with the key.
Can the car be locked and unlocked?
Yes - Checking for an open-circuit
No - Checking for contact resistance and oxidation
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Checking for an open-circuit
Check cable between data link connector (DLC) terminal 7 and VGLA control module #B19 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Continue - Verification
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Checking Volvo Scan Tool (ST)
Checking communication equipment
Checking power supply
- Ignition on.
Connect Volvo Scan Tool (ST) to the data link connector (DLC) and turn on power supply using the switch on the adapter box.
Check the Volvo Scan Tool (ST) display.
Does the display light?
Yes - Checking wiring
No - Checking power supply to the data link connector (DLC)
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Checking power supply to the data link connector (DLC)
- Ignition off.
- Disconnect Volvo Scan Tool (ST) and remove connector from the data link connector (DLC).
Connect a voltmeter between the data link connector (DLC) terminal 16 and ground.
The voltmeter should read battery voltage.
OK - Checking power ground to the data link connector (DLC)
Not OK - Checking the fuse and the cable
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Checking the fuse and the cable
Check fuse and cable between data link connector (DLC) terminal 16 and battery positive terminal for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault and a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Continue - Verification
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Checking power ground to the data link connector (DLC)
- Ignition off.
Connect an ohmmeter between the data link connector (DLC) terminal 4 and ground.
The ohmmeter should read 0 ohms.
OK - Checking data link connector (DLC) signal ground
Not OK - Checking for an open-circuit
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Checking for an open-circuit
Check cable between data link connector (DLC) terminal 4 and ground terminal for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Continue - Verification
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Checking data link connector (DLC) signal ground
- Ignition off.
Connect an ohmmeter between the data link connector (DLC) terminal 5 and ground.
The ohmmeter should read 0 ohms.
OK - Checking power supply to the adapter box
Not OK - Checking for an open-circuit
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Checking for an open-circuit
Check cable between data link connector (DLC) terminal 5 and ground terminal for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Continue - Verification
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Checking power supply to the adapter box
- Ignition on.
- Volvo Scan Tool (ST) connected to the data link connector (DLC).
- Disconnect the Volvo Scan Tool (ST) wiring at the adapter box.
Connect a voltmeter between ground and 25-pin connector terminals:
- 15 (to data link connector (DLC))
- 20 (to data link connector (DLC))
- 21 (to data link connector (DLC))
- 22 (to data link connector (DLC))
The voltmeter should read battery voltage in all readings.
OK - Checking power ground to the adapter box
Not OK - Replacing component
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Replacing component
Try with new wiring to the Volvo Scan Tool (ST).
Continue - Verification
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Checking power ground to the adapter box
- Ignition off.
- Volvo Scan Tool (ST) wiring connected to the data link connector (DLC).
- Wiring disconnected from the adapter box.
Connect a voltmeter between ground and the 25-pin connector terminals:
- 23 (to data link connector (DLC))
- 24 (to data link connector (DLC))
- 25 (to data link connector (DLC))
The ohmmeter should read 0 ohms in all readings.
OK - Checking power supply to Volvo Scan Tool (ST)
Not OK - Replacing component
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