1. Assemble a gauge manifold on the high pressure service valve.
2. Disconnect the A/C pressure sensor connector and connect the special tool test harness (MB991658) as shown.
3. While the READY (ready to drive) indicator illuminates, turn on the air conditioning switch.
4. At this time, check to see that the voltage of the A/C pressure sensor connector terminal No. 2 reflects the specifications of the figure.| note | - The allowance shall be defined as ±5%.
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