115
SYSTEM ANALYSIS
EMM LED INDICATORS
6
EMM LED INDICATORS
The EMM LED indicators provide a quick refer-
ence to the status of several outboard systems.
Checking the LEDs FIRST when diagnosing an
engine problem can save a lot of time.
IMPORTANT: LED 1 is toward the rear of the
outboard (Closest to EMM J2 connector).
Key ON
When the EMM is ON (engine not running), the
following LEDs should light:
LED 1 – SAC Circuit working – 30 V present on
55 V circuit.
LED 3 – Sensor Circuits working. FLASHING
LIGHT indicates Code 57 – engine will not start.
LED 4 – Stop Circuit not grounded–okay to start.
FLASHING LIGHT indicates severe overheat or
no oil – engine in SHUTDOWN mode.
Starting
Starting mode occurs from the time the flywheel
begins to turn until the outboard is running for 2
seconds. During starting, all four LEDs should
light and then go off in sequence.
LED 1 – CHARGING OKAY – Stator signal 30 V
or higher. For NO LIGHT, check for:
• SAC circuit problem
LED 2 – CRANK POSITION OKAY – input from
CPS, EMM powered ON. For NO LIGHT, check
for:
• Code 16 – CPS, intermittent loss of sync
LED 3 – SENSORS OKAY (5 V). For NO LIGHT,
check for:
• Code 12 – TPS circuit fault
• Code 13 – TPS below expected range
• Code 14 – TPS above expected range
• Code 19 – In Gear (tiller models)
• Code 23 – EMM temp. sensor circuit fault
• Code 24 – EMM temp. below expected range
• Code 37 – Water in fuel
• Code 41 – PORT temp. sensor circuit fault
• Code 42 – PORT temp. below expected range
• Code 47 – AT sensor circuit fault
• Code 48 – AT sensor below expected range
• Code 49 – AT sensor above expected range
• Code 58 – Operating temp. not reached, Port
• Code 59 – Operating temp. not reached, Stbd
• Code 67 – STBD temp. sensor circuit fault
• Code 68 – STBD temp. below expected range
For FLASHING LIGHT, check for Code 57.
LED 4 – LANYARD/STOP OKAY. For NO LIGHT,
check for:
• Grounded stop circuit.
For FLASHING LIGHT, check for:
• Code 29 – EMM temp. OVER range (flashing)
• Code 31 – Engine temp. OVER range (flashing)
• Code 33 – Engine shutdown, excessive no oil
condition
1. LED indicators 005239
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