Service Brake Air Leakage Test
c2 dm 12.09.003
- Turn the ignition key to the ON position (the engine is off, or the high-voltage system is disengaged for an electric vehicle).
- Depress the brake pedal continuously for several minutes.
- Observe the air gauges and time the air pressure loss. After the initial loss of air pressure, the loss rate should be no more than 3 psi (21 kPa) per minute.
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