Positive Lead | Measurement / Action | Negative Lead |
C197C-1 ("S" terminal) | Ground |
Is the voltage greater than 11 volts?
Yes | CLEAN the starter solenoid "S" terminal and starter solenoid connector. CHECK the wiring and the starter motor for a loose or intermittent connection. |
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No | REPAIR the circuit for an open. |
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A21 CHECK THE PCM (POWERTRAIN CONTROL MODULE) STARTER RELAY CIRCUITS FOR A SHORT TO GROUND
Ignition OFF.
Disconnect BJB starter relay.
Disconnect PCM C1381B .
Measure:
Positive Lead | Measurement / Action | Negative Lead |
C1381B-1 | Ground | |
C1381B-58 | Ground |
Are the resistances greater than 10, 000 ohms?
Yes | GO to A22 |
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No | REPAIR the affected circuit. |
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A22 CHECK THE PCM (POWERTRAIN CONTROL MODULE) STARTER RELAY CIRCUITS FOR AN OPEN
Measure:
Positive Lead | Measurement / Action | Negative Lead |
C1381B-1 | BJB starter relay pin 1 | |
C1381B-58 | BJB starter relay pin 2 |
Are the resistances less than 3 ohms?
Yes | GO to A28 |
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Original technical text and illustrations, formatted as HTML. Follow the engine, transmission, equipment, model and year specified in the source. Import and layout checks do not establish applicability to every 2015–2017 Mustang. About this collection.