Four-Wheel Pneumatic System Electrical Check

Notes on the check table 

• Incorrectly performed testing can cause damage to the system. No bridges other than the connections stated in the check table may be implemented. 

• The target values are tailored to the VAG1526 and are not necessarily relevant if other instruments are used. 
• Please perform the troubleshooting procedures shown on the right-hand side of the table if the figures measured diverge from the target figures 

• If the figures are correct, also check the wiring for loose contacts and short circuiting to positive and Ground (GND). This is necessary in the case of "sporadic malfunctions", in particular 
• Perform the continuity tests (bridging) using adapter set VAG1594. 
• If the figures measured diverge from the targets only slightly, clean the sockets and pins of the test instruments and measuring leads using G 000 700 04 contact spray and perform test again. Check the leads and connections again before replacing the components involved. This is particularly important if the target value for measurement of resistance is below 10 ohm. 

Fig 1: Four-Wheel Pneumatic System Electrical Check (Test Step 1 & 2)

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Fig 2: Four-Wheel Pneumatic System Electrical Check (Test Step 3 & 4)

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Fig 3: Four-Wheel Pneumatic System Electrical Check (Test Step 5 & 6)

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Fig 4: Four-Wheel Pneumatic System Electrical Check (Test Step 7 & 8)

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Fig 5: Four-Wheel Pneumatic System Electrical Check (Test Step 8, Cont.)

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Fig 6: Four-Wheel Pneumatic System Electrical Check (Test Step 9 Through 12)

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Fig 7: Four-Wheel Pneumatic System Electrical Check (Test Step 13 Through 15)

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