Self-Diagnostic System Indication - Suzuki DF 40 Service Manual

Four stroke
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PTT MOTOR
STD
Brush length
Limit
STD
Commutator outside
diameter
Limit

SELF-DIAGNOSTIC SYSTEM INDICATION

When the abnormality occurs in a signal from sensor, switch etc., the "CHECK ENGINE" lamp on the
monitor-tachometer flashes (lights intermittently) according to the each code pattern with buzzer sound-
ing.
PRIORITY
FAILED ITEM
*
1
MAP sensor 1
2
CKP sensor
IAC valve/By-pass air
3
screw adjustment
4
CMP sensor
5
CTP switch
6
Cylinder temp. sensor
7
IAT sensor
MAP sensor 2
8
(Sensor hose)
Rectifier & regulator
9
(Over-charging)
Exhaust manifold temp.
10
sensor
* If more than two items fail at once, the self-diagnostic indication appears according to priority order.
The indication repeats three times.
mm (in.)
mm (in.)
mm (in.)
mm (in.)
CODE
LAMP FLASHING PATTERN
on
3 – 4
off
on
4 – 2
off
on
3 – 1
off
on
2 – 4
off
on
2 – 2
off
on
1 – 4
off
on
2 – 3
off
on
3 – 2
off
on
1 – 1
off
on
1 – 5
off
GENERAL INFORMATION
9.8 (0.39)
4.8 (0.19)
22.0 (0.87)
21.0 (0.83)
FAIL-SAFE SYSTEM
ACTIVE
YES
NO
NO
YES
NO
YES
YES
NO
NO
YES
1-14

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Questions and answers

Mike
February 16, 2025

I just bought a 2022 DF40A it's new never been installed. I want to hook up a fuel tank, not seeing a quick disconnect on the motor like I'm used to, is the line that's plugged off from the factory that was zip tied to the battery cable the fuel line. It looks vary small but the fitting on ylthe primer bulb looks like it will fit. Thanks for any help. The dealer could not help me. Lol not tech on a Saturday.

Doug Bailey
February 23, 2025

Where is the PTT relay on a 2021 DF 40A outboard engine?

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