ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 7862 > < Initial Inspection and Diagnostic Overview|Page 7860
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Clock: Pinpoint Tests

Clock

Pinpoint Tests

Pinpoint Tests A: The Clock Operation Is Erratic/Inoperative

Refer to Wiring Diagram Set 44, Horn/Cigar Lighter for schematic and connector information.  See: Diagrams/Electrical Diagrams/Diagrams By
Number

Normal Operation

The clock receives battery voltage from the Smart Junction Box (SJB) through circuit SBP14 (BN/RD). Ground for the clock is supplied through circuit
GD114 (BK/BU).

This pinpoint test is intended to diagnose the following:

-

Fuse

-

Wiring, terminals or connectors

-

Clock

PINPOINT TEST A: THE CLOCK OPERATION IS ERRATIC/INOPERATIVE

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.

-------------------------------------------------
A1 CHECK CIRCUIT SBP14 (BN/RD) FOR AN OPEN

-

Ignition OFF.

-

Disconnect: Clock C2016.

-

Measure the voltage between the clock C2016-6, circuit SBP14 (BN/RD), harness side and ground.

-

Is the voltage greater than 10 volts?

Yes

GO to A2.

No

VERIFY that the SJB fuse 14 (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. TEST the system for normal operation.

-------------------------------------------------
A2 CHECK CIRCUIT GD114 (BK/BU) FOR AN OPEN

-

Disconnect: Negative Battery Cable.

-

Measure the resistance between the clock C2016-5, circuit GD114 (BK/BU), harness side and ground.

Initial Inspection and Diagnostic Overview|Page 7862 > < Initial Inspection and Diagnostic Overview|Page 7860