R32 4Motion V6-3.2L (CBRA) (2008)
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Using a Multimeter, check the Leak Detection Pump (LDP) -V144- electrical harness connector terminal 3 to Ground (GND) for voltage.
Leak Detection Pump
Measure to
(LDP) -V144- electrical
harness connector terminal
3
Engine Ground (GND)
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Operate the starter briefly.
Specified value: battery voltage.
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Switch the ignition off.
If the specified value was not obtained:
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Check the wiring connection from the Leak Detection Pump (LDP) -V144- electrical harness connector terminal 3 to the Power Supply Relay
(terminal 30, B+) J317 terminal 87 for an open circuit, a short circuit to Battery positive (+) or to Ground (GND).
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the wiring connection.
If the specified value was obtained:
Checking output wiring
If the manufacturers test box is being used. Perform the following step.
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Install the test box.
If the manufacturers test box is not being used. Perform the following step.
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Remove the Engine Control Module (ECM) J623.
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Using a Multimeter, check the Leak Detection Pump (LDP) V144 electrical connector terminals to Engine Control Module (ECM) J623 electrical
connector T121 for resistance.
Leak Detection Pump
Engine Control Module (ECM)
(LDP) V144 electrical
J623 electrical connector
connector terminals
T121 terminals or test box socket
1
80
2
25
