Focus L4-2.0L (2009)
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Are the resistances greater than 1,000 ohms?
Yes
CONNECT the negative battery cable. GO to O28.
No
REPAIR the circuit. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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O23 CHECK FOR CORRECT PCM OPERATION
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Disconnect all the PCM connectors.
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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 all the PCM connectors and make sure they seat 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 PCM. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan tool.
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O24 CHECK FOR CORRECT ABS MODULE OPERATION
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Disconnect the ABS module 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 ABS module 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 ABS module. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CONNECT all modules. CLEAR
the DTCs. REPEAT the network test with the scan tool.
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O25 CHECK FOR CORRECT RCM OPERATION
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Disconnect all the RCM connectors.
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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 all the RCM connectors and make sure they seat correctly.