MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Engine

Starting System

303-06C Starting System - 5.0L

2016 Mustang5.0LReference 672 / 6,619HTML edition
← Chapter contentsProcedure contents

Condition

Possible Sources

Actions

The engine does not crank

Refer to the Pinpoint Test

GO to Pinpoint Test A

The engine cranks slowly

Refer to the Pinpoint Test

PERFORM the starter system component test. REFER to Starter Motor - Positive Circuit Test in this section.

The engine cranks but will not start

Fuses PCM Fuel pump Fuel pump relay Starter Wiring, terminals or connectors

Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual. Section 3 Symptom Charts.

Unusual starter noise

Refer to the Pinpoint Test

GO to Pinpoint Test B

The starter spins but the engine does not crank

Starter motor

INSPECT the starter motor mounting and engagement. REPAIR as necessary.

Damaged flexplate

INSPECT the flexplate for damaged, missing or worn teeth. REPAIR as necessary.

The starter does not disengage from the flexplate

Starter relay Wiring, terminals or connectors

REMOVE the starter relay. If the engine stops cranking, INSTALL a new relay. If the engine continues to crank, REPAIR circuit CDC25 (BN/GN) for a short to voltage.

The remote start is inoperative

Remote start feature not enabled Passive Key or battery PCM Wiring, terminals or connectors

REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).

The remote start has poor range performance

Passive key or battery After market systems High power devices TV/radio transmission towers

REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).

Pinpoint Test(s)

Engine Does Not Crank

Refer to Wiring Diagrams Cell 20 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Starting System - System Operation and Component Description (303-06C Starting System - 5.0L 32V Ti-VCT/5.0L Ti-VCT V8 (308kW/418PS), Description and Operation).

DTC Fault Trigger Conditions

DTC

Description

Fault Trigger Conditions

P06E9

Engine Starter Performance

The PCM sets this DTC when no engine rotation is detected during a crank event.

P0830:11 Clutch Pedal Switch "A" Circuit: Circuit Short

To Ground

The BCM sets this DTC when a short to ground is detected on the clutch bottom of travel circuit during an on-demand self test.

Possible Sources

Battery Battery cables IPC Starter motor BJB starter relay

Visual Inspection and Diagnostic Pre-checks

Inspect the run/start relay. Inspect the high current BJB connections. Verify the BJB fuse 60 (5A). Verify the BJB fuse 30 (30A). Inspect the passive key. Inspect the CPP switch (manual transmission only).

PINPOINT TEST A : ENGINE DOES NOT CRANK

A1 PERFORM INSPECTION AND VERIFICATION

NOTE: Make sure battery voltage is greater than 12.2 volts prior to and during this pinpoint test.

NOTE: If it is necessary to leave the battery charger connected during testing, do not leave it on its highest or boost setting. The highest settings can

Source reference 672

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.