Escape 4WD L4-2.5L Hybrid (2009)
REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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Q5 CHECK THE ISO 9141 CIRCUIT FOR A SHORT TO GROUND
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Measure the resistance between the DLC C251-7, circuit VDB10 (GY), harness side and ground.
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Is the resistance greater than 10,000 ohms?
Yes
GO to Q6.
No
REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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Q6 CHECK THE ISO 9141 COMMUNICATIONS NETWORK CIRCUIT BETWEEN THE PAM AND THE DLC FOR AN OPEN
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Measure the resistance between the PAM C4014-8, circuit VDB10 (GY), harness side and the DLC C251-7, circuit VDB10 (GY), harness side.
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Is the resistance less than 5 ohms?
Yes
CONNECT the negative battery cable. GO to Q7.
No
REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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Q7 CHECK FOR CORRECT PAM OPERATION
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Disconnect the PAM connector.
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Check for:
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corrosion
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damaged pins
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pushed-out pins
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Connect the PAM connector and make sure it seats correctly.
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Operate the system and verify the concern is still present.
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Is the concern still present?
Yes
INSTALL a new PAM. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
