Mariner 4WD L4-2.5L (2010)
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
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G1 CHECK THE PSCM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
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Ignition OFF.
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Disconnect: PSCM C2231a .
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Ignition ON.
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Measure the voltage between the PSCM C2231a-1, circuit CBP35 (YE/GY), harness side and ground.
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Is the voltage greater than 10 volts?
Yes
GO to G2.
No
VERIFY the Smart Junction Box (SJB) fuse 35 (10A) is OK. If OK, REPAIR the circuit in question. If not OK, Refer to the Wiring Diagrams to identify
the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool. See: Diagrams/Electrical Diagrams/Diagrams
By Number
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G2 CHECK THE PSCM GROUND CIRCUIT FOR AN OPEN
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Ignition OFF.
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Disconnect: PSCM C2231b .
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Disconnect: Negative Battery Cable .
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Measure the resistance between the PSCM C2231b-2, circuit GD116 (BK/VT), harness side and ground.
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Is the resistance less than 5 ohms?
Yes
GO to G3.
No
REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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G3 CHECK THE HS-CAN CIRCUITS BETWEEN THE PSCM AND THE DLC FOR AN OPEN
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Measure the resistance between the PSCM C2231a-2, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU),
harness side.
