Checking internal resistance

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Connect multimeter for resistance measurement as follows.

Fig 1: Identifying Leak Detection Pump Connector Terminals

Courtesy of AUDI OF AMERICA, INC.

LEAK DETECTION PUMP (LDP) -V144- CIRCUIT RESISTANCE TEST

Leak Detection Pump (LDP) -V144- Terminal	Specified value
1 + 3	640 to 720 Ω
2 + 3	15 to 17 Ω

If specified values are not obtained:

Replace Leak Detection Pump (LDP) -V144-. See item 9.

If specified values are obtained: