Mariner 2WD L4-2.5L (2009)
(GY/OG) (MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the SJB. Voltage for the SJB is provided directly from the
internal SJB busbar through SJB fuse 5 (10A). Ground is provided by circuit GD182 (BK/GY).
This pinpoint test is intended to diagnose the following:
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Fuse
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Wiring, terminals or connectors
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SJB
PINPOINT TEST J: THE SJB DOES NOT RESPOND TO THE SCAN TOOL
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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J1 CHECK THE SJB FUSE FOR VOLTAGE
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Ignition OFF.
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Measure the voltage between the back of the SJB fuse 5 (10A) terminals (both sides) and ground.
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Are the voltages greater than 10 volts?
Yes
GO to J2.
No
VERIFY the Smart Junction Box (SJB) fuse 5 (10A) is OK. If OK, REPAIR the circuit. 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.
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J2 CHECK THE SJB GROUND CIRCUIT FOR AN OPEN
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Disconnect: Negative Battery Cable.
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Disconnect: SJB C2280d.
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Measure the resistance between the SJB C2280d-8, circuit GD182 (BK/GY), harness side and ground; and between the SJB C2280d-12, circuit
GD182 (BK/GY), harness side and ground.
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Are the resistances less than 5 ohms?
Yes