Mariner 4WD L4-2.5L (2010)
CONNECT the negative battery cable. GO to U4.
No
GO to Pinpoint Test V. See: Pinpoint Test V: No Medium Speed Controller Area Network (MS-CAN) Communication, All Modules Are Not
Responding
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U4 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO VOLTAGE
-
Ignition ON.
-
Measure the voltage between the DLC C251-3, circuit VDB06 (GY/OG), harness side and ground; and between the DLC C251-11, circuit VDB07
(VT/OG), harness side and ground.
-
Is the voltage greater than 6 volts?
Yes
REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
GO to U5.
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U5 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE SJB DISABLED
NOTE: When re-running the network test, the network test application must be first closed or the screen display reverts back to the prior run network
test results.
-
Disconnect: SJB Fuse 5 (10A) .
-
Enter the following diagnostic mode on the scan tool: Network Test .
-
Repeat the network test.
-
Do all other modules pass the network test?
Yes
INSTALL the removed fuse. GO to Pinpoint Test Q. See: Pinpoint Test Q: The Smart Junction Box (SJB) Does Not Respond To The Scan Tool
No
INSTALL the removed fuse. GO to U6.
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U6 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE HVAC MODULE DISABLED
NOTE: When re-running the network test, the network test application must be first closed or the screen display reverts back to the prior run network
test results.
-
Disconnect: SJB Fuses 37 (10A) and 15 (10A) .
-
Enter the following diagnostic mode on the scan tool: Network Test .
-
Repeat the network test.
-
Do all other modules pass the network test?
Yes
INSTALL the removed fuses. GO to Pinpoint Test L. See: Pinpoint Test L: The HVAC Module Does Not Respond To The Scan Tool
No
