ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 8575 > < Initial Inspection and Diagnostic Overview|Page 8573
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Disconnect: SJB C2280d.

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Do the stoplamps continue to illuminate?

Yes

If the LH rear lamp continues to illuminate, REPAIR circuit CLS18 (GY/BN). CLEAR the DTCs. REPEAT the self-test.

If the RH rear lamp continues to illuminate, REPAIR circuit CLS19 (VT/OG). CLEAR the DTCs. REPEAT the self-test.

No

GO to K7.

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K3 CHECK THE STOPLAMP SWITCH

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Disconnect: Stoplamp Switch C2064.

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Do the stoplamps continue to illuminate?

Yes

GO to K4.

No

INSTALL a new stoplamp switch. REFER to Stoplamp Switch  See: Brake Light Switch/Service and Repair. CLEAR the DTCs. REPEAT the self-test.

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K4 CHECK THE PCM

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Disconnect: PCM C175b.

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Do the stoplamps continue to illuminate?

Yes

GO to K5.

No

GO to K6.

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K5 CHECK CIRCUIT CCB08 (VT/WH) FOR A SHORT TO VOLTAGE

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Disconnect: SJB C2280b.

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Does the high mounted stoplamp continue to illuminate?

Yes

REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.

No

GO to K7.

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K6 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.

Initial Inspection and Diagnostic Overview|Page 8575 > < Initial Inspection and Diagnostic Overview|Page 8573