Suzuki DR-Z 125 Fault Codes

Suzuki DR-Z 125 motorcycles have engines, which are made up of many different parts. These parts must work together in order for the engine to function. A problem with one of the parts can make the engine not run. There are many different parts that make up an engine. The following suzuki dr-z 125 faults are the list of some of the parts of a motorcycle engine.

The fault codes are essential to the Suzuki DR-Z 125 motorcycle operation, as they create the spark that ignites the mixture of air and fuel in the engine. Check to see that the spark plugs are not soiled with carbon. As a result, the spark plugs will provide a much weaker spark. The most common cause of soiled spark plugs is the improper installation of an air filter. The air filter prevents dirt from getting into the engine, but a faulty air filter will allow dirt to enter the carburetor.

Suzuki DR-Z 125 Faults :

Engine management systems of Suzuki DR-Z 125 are responsible for monitoring a range of features and its warning light should go out a few seconds after ignition. The system's main job is to keep the engine running at peak performance by monitoring many parameters like coolant temperature, oil pressure, fuel level and air/fuel ratio. The system monitors these parameters continuously and alerts the driver if any of these parameters fall outside the predetermined limits.

Prior to diagnosis using the mode selection switch or SDS, perform the following visual inspections. The reason for visual inspection is that mechanical failures (such as oil leakage) cannot be displayed on the screen with the use of mode selection switch or SDS.

  • Engine oil level and leakage.
  • Engine coolant level and leakage.
  • Fuel level and leakage.
  • Clogged air cleaner element.
  • Battery condition.
  • Throttle cable play.
  • Vacuum hose looseness, bend and disconnection.
  • Broken fuse.
  • Fl indicator light operation.
  • Each warning indicator light operation.
  • Combination meter operation.
  • Exhaust gas leakage and noise.
  • Each coupler disconnection.
  • Clogged radiator fins.
Malfunction
Code
Detected Item Detected Failure Condition Check For
COO NO FAULT
C11 CMP sensor The signal does not reach ECM for 3 sec. or more, after receiving the starter signal. CMP sensor wiring and mechanical parts
CMP sensor, intake cam pin, wiring/coupler connection
P0340
C12 CKP sensor The signal does not reach ECM for 3 sec. or more, after receiving the starter signal. CKP sensor wiring and mechanical parts
CKP sensor, lead wire/coupler connection
P0335
C13 IAP sensor The sensor should produce following voltage. 0.5 V 5 Sensor voltage < 4.85 V
In other than the above range, C13 (P0105) is indicated.
IAP sensor, lead wire/coupler connection
P0105 21 Sensor voltage is higher than specified value. IAP sensor circuit shorted to VCC or ground circuit open
L Sensor voltage is lower than specified value. IAP sensor circuit open or shorted to ground or VCC circuit open
C14 TP sensor The sensor should produce following voltage. 0.2 V 5 Sensor voltage < 4.8 V
In other than the above range, C14 (P0120) is indicated.
TP sensor, lead wire/coupler connection
P0120 2 Sensor voltage is higher than specified value. TP sensor circuit shorted to VCC or ground circuit open
L Sensor voltage is lower than specified value. TP sensor circuit open or shorted to ground or VCC circuit open
C15 ECT sensor
indicated.
The sensor voltage should be the following. 0.15 V 5 Sensor voltage < 4.85 V
In other than the above range, C15 (P0115) is i
ECT sensor, lead wire/coupler connection
P0115
Sensor voltage is higher than specified value. ECT sensor circuit open or ground circuit open
L Sensor voltage is lower than specified value. ECT sensor circuit shorted to ground
C21 IAT sensor
indicated.
The sensor voltage should be the following. 0.15 V 5 Sensor voltage < 4.85 V
In other than the above range, C21 (P0110) is i
IAT sensor, lead wire/coupler connection
P0110 1=7 Sensor voltage is higher than specified value. IAT sensor circuit open or ground circuit open
L Sensor voltage is lower than specified value. IAT sensor circuit shorted to ground
C22 AP sensor The sensor voltage should be the following. 0.5 V 5 Sensor voltage < 4.85 V
In other than the above range, C22 (P1450) is indicated.
AP sensor, lead wire/coupler connection
P1450 I= Sensor voltage is higher than specified value. AP sensor circuit shorted to VCC or ground circuit open
L Sensor voltage is lower than specified value. AP sensor circuit open or shorted to ground or VCC circuit open
C23 TO sensor The sensor voltage should be the following for 2 sec. and more, after ignition switch is turned ON.
0.2 V 5 Sensor voltage < 4.8 V
In other than the above value, C23 (P1651) is indicated.
TO sensor, lead wire/coupler connection
P1651
Sensor voltage is higher than specified value. TO sensor circuit shorted to VCC or ground circuit open
L Sensor voltage is lower than specified value. TO sensor circuit open or shorted to ground or VCC circuit open
C24/C25
C26/C27
Ignition signal CKP sensor (pick-up coil) signal is produced, but signal from ignition coil is interrupted 8 times or more continuously. In this case, the code C24 (P0351), C25 (P0352), C26 (P0353) or C27 (P0354) is indicated. Ignition coil, wiring/coupler connection, power supply from the battery
P0351/P0352
P0353/P0354
C28 STV actuator When no actuator control signal is supplied from the ECM, communication signal does not
reach ECM or operation voltage does not STVA motor, lead wire/coupler
reach STVA motor, C28 (P1655) is indicated. connection
STVA can not operate properly or its motor
locked.
P1655
C29
The sensor should produce following voltage.
0.15 V 5 Sensor voltage < 4.85 V STP sensor, lead wire/coupler
In other than the above range, C29 (P1654) is connection
indicated.
P1654 H STP sensor
Sensor voltage is higher than specified value.
STP sensor circuit shorted to VCC or ground circuit open
L Sensor voltage is lower than specified value. STP sensor circuit open or shorted to ground or VCC circuit open
C31 Gear position signal Gear position signal voltage should be higher than the following for 3 seconds and more. Gear position sensor voltage 0.6 V
If lower than the above value, C31 (P0705) is indicated.
GP switch, wiring/coupler connection, gearshift cam, etc.
P0705
C32/C33
C34/C35
Primary fuel injector CKP sensor (pickup coil) signal is produced, but fuel injector signal is interrupted 4 times or more continuously. In this case, the code C32 (P0201), C33 (P0202), C34 (P0203) or C35 (P0204) is indicated. Primary fuel injector, wiring/ coupler connection, power supply to the injector
P0201/P0202
P0203/P0204
C36/C37
C38/C39
Secondary fuel injector Some failure exists in the fuel injector signal in a high load, high revolution condition. In this case, the code C36 (P1764), C37 (P1765), C38 (P1766) or C39 (P1767) is indicated. Secondary fuel injector, wiring/ coupler connection, power supply to the injector
P1764/P1765
P1766/P1767
C40/P0505 ISC valve The circuit voltage of motor drive is unusual. ISC valve circuit open or shorted to ground
Power source circuit open
C40/P0506 Idle speed is lower than the desired idle speed. Air passage clogged
ISC valve is fixed
ISC valve preset position is incorrect
C40/P0507 Idle speed is higher than the desired idle speed. ISC valve hose connection ISC valve is fixed
ISC valve preset position is incorrect
C41 FP relay No voltage is applied to the fuel pump, although fuel pump relay is turned ON, or voltage is applied to fuel pump although fuel pump relay is turned OFF. Fuel pump relay, lead wire/ coupler connection, power source to fuel pump relay and fuel injectors
P0230 H Voltage is applied to fuel pump although fuel pump relay is turned OFF. Fuel pump relay switch circuit shorted to power source
Fuel pump relay (switch side)

No voltage is applied to the fuel pump, p, although fuel pump relay is turned ON. Fuel shortpump relay circuit open or
Fuel pump relay (coil side)
C41/P2505 ECM/PCM power input signal No voltage is applied to the ECM. Lead wire/coupler connection of ECM terminal to fuel fuse
C42 Ignition switch Ignition switch signal is not input to the ECM. * When the I.D. agreement is not verified.
* ECM does not receive communication signal from the immobilizer antenna.
Ignition switch, lead wire/ coupler, etc.
* Immobilizer/anti-theft system
P1650
C44/P0130 H02 sensor H02 sensor output voltage is not input to ECM during engine operation and running
condition.
(Sensor voltage > 1.0 V)
C44 (P0130) is indicated.
H02 sensor is circuit open or shorted to the power source
C44/P0135 The Heater can not operate so that heater operation voltage is not supply to the oxygen heater circuit, C44 (P0135) is indicated. Heated circuit open or shorted to ground
Battery voltage supply to the H02 sensor
C46 EXCV actuator EXCVA position sensor produces following voltage.
0.1 V 5 sensor voltage < 4.9 V
In other than the above range, C46 (P1675) is indicated.
When no actuator control signal is supplied from the ECM, communication signal does not reach ECM or operation voltage does not reach EXCVA motor, C46 (P1658) is
indicated. EXCVA can not operate.
EXCVA, EXCVA lead wire/ coupler
P1657 2 EXCVA position sensor voltage is higher than specified value. EXCVA position sensor circuit shorted to VCC or ground circuit open
L EXCVA position sensor voltage is lower than specified value. EXCVA position sensor circuit open or shorted to ground or VCC circuit open
P1658 When no operation voltage reaches EXCVA motor, C46 (P1658) is indicated. EXCVA motor can not be operated.
wire/coupler
EXCVA, EXCVA motor lead
C49 PAIR control solenoid valve PAIR control solenoid valve voltage is not input to ECM. PAIR control solenoid valve, lead wire/coupler connection
P1656
C60 Cooling fan relay Cooling fan relay signal is not input to ECM. Cooling fan relay, lead wire/ coupler connection
PO480
C62 EVAP system purge control solenoid valve (E-33 only) EVAP system purge control solenoid valve voltage is not input to ECM. EVAP system purge control solenoid valve, lead wire/ coupler connection
PO443
C91 Vehicle speed sensor Combination meter does not receive signal from the vehicle speed sensor for more than 6 sec. when the motorcycle is running.
ECM does not receive signal from the vehicle speed sensor for more than 6 sec. when the motorcycle is running.
Failure in communication between ECM and combination meter with reference to vehicle speed.
Speed sensor and combination meter wiring/coupler connection between ECM and combination meter
P0500
C93 Steering damper solenoid valve Steering damper control current does not flow to the solenoid valve.
With IG turned ON, ECM detects a failure of internal circuit element. Solenoid current does not converge to the target value. Battery voltage is 10 V or below with the engine running.
Steering damper solenoid valve circuit interrupter element shorted, feedback current convergence failure, low battery voltage
P1769 H Steering damper control current is higher than specified value.
An abnormal current is detected during the vehicle standstill. Solenoid current is 0.7 A or above.
Steering damper solenoid valve circuit shorted to VCC
L Steering damper control current is lower than specified value.
With IG turned ON, ECM detects a discontinuity. An abnormal current is detected during the vehicle standstill.
Steering damper solenoid valve circuit open or shorted

Suzuki DR-Z 125 Motorcycle Problems :

  • Suzuki dr-z 125 after fire
  • Suzuki dr-z 125 air cleaner clogged, poorly sealed, or missing
  • Suzuki dr-z 125 air cleaner element clogged
  • Suzuki dr-z 125 air duct loose
  • Suzuki dr-z 125 air suction valve trouble
  • Suzuki dr-z 125 air switching valve trouble
  • Suzuki dr-z 125 backfiring when deceleration
  • Suzuki dr-z 125 cracked or obstructed intake air pressure sensor
  • Suzuki dr-z 125 crankshaft sensor trouble
  • Suzuki dr-z 125 eCU ground and power supply trouble
  • Suzuki dr-z 125 eCU trouble
  • Suzuki dr-z 125 engine overheating - Water temperature sensor or crankshaft sensor trouble
  • Suzuki dr-z 125 engine stalls easily
  • Suzuki dr-z 125 engine vacuum not synchronizing
  • Suzuki dr-z 125 exhaust Smokes Excessively
  • Suzuki dr-z 125 firing incorrect
  • Suzuki dr-z 125 fuel filter clogged
  • Suzuki dr-z 125 fuel injector clogged
  • Suzuki dr-z 125 fuel injector O-ring damage
  • Suzuki dr-z 125 fuel injector trouble
  • Suzuki dr-z 125 fuel line clogged
  • Suzuki dr-z 125 fuel poor quality or incorrect
  • Suzuki dr-z 125 fuel pressure regulator trouble
  • Suzuki dr-z 125 fuel pressure too low or too high
  • Suzuki dr-z 125 fuel pump bearings may wear. Replace the fuel pump
  • Suzuki dr-z 125 fuel pump not operating
  • Suzuki dr-z 125 fuel pump operates intermittently and often DFI fuse blows
  • Suzuki dr-z 125 fuel pump relay trouble
  • Suzuki dr-z 125 fuel pump trouble
  • Suzuki dr-z 125 fuel/air mixture incorrect
  • Suzuki dr-z 125 fuel/air mixture incorrect
  • Suzuki dr-z 125 gear position sensor, starter lockout or side stand switch trouble
  • Suzuki dr-z 125 inspect and repair or replace
  • Suzuki dr-z 125 intake air pressure sensor trouble
  • Suzuki dr-z 125 intake air temperature sensor trouble
  • Suzuki dr-z 125 intake air temperature sensor trouble
  • Suzuki dr-z 125 intermittent any DFI fault and its recovery
  • Suzuki dr-z 125 little fuel in tank
  • Suzuki dr-z 125 main throttle sensor trouble
  • Suzuki dr-z 125 no or little fuel in tank
  • Suzuki dr-z 125 poor acceleration
  • Suzuki dr-z 125 spark plug burned or gap maladjusted
  • Suzuki dr-z 125 spark plug dirty, broken or gap maladjusted
  • Suzuki dr-z 125 spark plug incorrect
  • Suzuki dr-z 125 spark weak
  • Suzuki dr-z 125 stick coil shorted or not in good contact
  • Suzuki dr-z 125 stick coil trouble
  • Suzuki dr-z 125 subthrottle sensor trouble
  • Suzuki dr-z 125 subthrottle valve actuator trouble
  • Suzuki dr-z 125 throttle body assy dust seal damage
  • Suzuki dr-z 125 throttle body assy holder loose
  • Suzuki dr-z 125 throttle valves will not fully open
  • Suzuki dr-z 125 unstable (rough) idling
  • Suzuki dr-z 125 unstable fuel pressure
  • Suzuki dr-z 125 vacuum hose
  • Suzuki dr-z 125 vehicle-down sensor trouble
  • Suzuki dr-z 125 water or foreign matter in fuel Change fuel
  • Suzuki dr-z 125 water temperature sensor trouble

Fault problems that can occur with yourSuzuki DR-Z 125motorcycle engine is a blown head gasket. This can cause your engine to overheat and possibly crack the cylinder heads. In this case, it is best to take your Suzuki DR-Z 125 motorcycle to a professional mechanic to have it checked out. Another common problem is with the carburetor. The carburetor is the part of your motorcycle that mixes air and fuel to create the combustion needed to power the engine.

Possible Failure Types :

  • Strange Suzuki DR-Z 125 engine noise.
  • Suzuki DR-Z 125 fog from engine.
  • Strange Suzuki DR-Z 125 engine noise.
  • Suzuki DR-Z 125 Vibrations and Rattling
  • Suzuki DR-Z 125 Loud Acceleration
  • Suzuki DR-Z 125 rusty exhaust
  • Suzuki DR-Z 125 blockages in exhaust pipe
  • Suzuki DR-Z 125 wear and tear exhaust
Suzuki Logo

Suzuki Motors was a transformation of the original Suzuki Loom Works company in 1954, after the textile industry in Japan collapsed. The motorcycle arm of the company rapidly developed powerful and small engines, and today is known for powerhouse motorcycles like the Hayabusa and the GSX-R1000R.

Check other Suzuki fault codes.

Common abbreviations and their meanings below:

ABS: Anti-Lock Braking System
ACR: Automatic Compression Release
AFR: Air Fuel Ratio
AIS: Active Intake Solenoid
ATS: Air Temperature Sensor
BAS: Bank Angle Sensor
BCM: Body Control Module
CAN: Controller Area Network
CCM: Cruise Control Module
CKP: Crank Position Sensor
DLC: Datalink Connector
DTC: Diagnostic Trouble Codes
ECM: Electronic Control Module
ECT: Engine Coolant Temperature
ECU: Electronic Control Unit
EFI: Electronic Fuel Injection
EFP: Electronic Fuel Pump
ET: Engine Temperature sensor
FI: Fuel Injectors
FPR: Fuel Pressure Regulator
H-DSSS: Harley-DavidsonĀ® Smart Security System
HCU: Hydraulic Control Unit, ABS
HFSM: Hands Free Security Module
HO2S: Heated Oxygen Sensor
IAC: Idle Air Control actuator
IAT: Intake Air Temperature sensor
ICM: Ignition Control Module
IMAP: MAP + IAT in one unit
ISS: Ion Sensing System
JSS: Jiffy Stand Sensor
LHCM: Left Hand Control Module
MAP: Manifold Absolute Pressure sensor
MHR: Right Hand Control Module
RCM: Reverse Control Module
TCA: Throttle Control Actuator
TGS: Twist Grip Sensor
TMAP: Intake Air Temperature / Manifold Absolute Pressure equipment
TPS: Throttle Position Sensor
TSM / TSSM: (Turn Signal / Turn Signal Security Module)
VE: Volume Efficiency
VIN: Vehicle Identification Number
VSS: Vehicle Speed Sensor
WSS: Wheel Speed Sensor

These abbreviations, and the accompanying list of trouble codes, can be a great start when your Suzuki check engine light comes on. As mentioned above, if you are not comfortable with electrical diagnostic work, a dealership or qualified technician can offer assistance. Please keep in mind that even though you have the ability to clear a DTC using the onboard diagnostic feature, you shouldn't clear the code prior to your service appointment. Let the technician view and clear the codes as they troubleshoot the issue.

Suzuki and logo are registered trademarks of Suzuki. We are fan of MOTORCYCLES ! We love them.

Motorcycle electrical systems are very complex to fix it, check with your motorcycle diagnosis tool for the fault code and start motorcycle troubleshooting process.Some bike problems require professional troubleshooting and repair. However, there are many issues that you can easily fix on your own.

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