Textron Motors 408014, Diagnostic Manual

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21 DHB MPE850 MAR Rev B | 408014 | 408090 | 408101 | 408246 |
5 Troubleshooting with trouble codes
5.2 Description of trouble codes
Trouble code
Displayed fault
Trouble code description
Possible consequences
Affected part/system
►
Possible consequences/remedy
P0122 Throttle/Pedal Position Sensor/Switch "A"
Circuit Low
Open circuit or short circuit to ground at part or
wire harness.
Unusual or no throttle response.
Throttle body
► Check wiring in the wire harness to the
affected part. (See chapter 7 Wiring
diagram.)
► Replace the affected part. (See the repair
manual.)
P0123 Throttle/Pedal Position Sensor/Switch "A"
Circuit High
Short circuit to plus at part or wire harness.
Unusual or no throttle response.
Throttle body
► Check wiring in the wire harness to the
affected part. (See chapter 7 Wiring
diagram.)
► Replace the affected part. (See the repair
manual.)
P0128 Coolant Thermostat (Coolant Temperature
Below Thermostat Regulating Temperature)
Coolant temperature increase is implausible.
Thermostat
► A permanently open or stuck thermostat
can cause the fault. Check the thermostat.
(See chapter 6 Test procedures at engine.)
P0130 O2 Sensor Circuit Bank 1 Sensor 1
Open circuit at part or wire harness.
Loss of power.
Rough engine running.
Sensor lambda 1
► Check wiring in the wire harness to the
affected part. (See chapter 7 Wiring
diagram.)
► Replace the affected part. (See the repair
manual.)
P0131 O2 Sensor Circuit Low Voltage Bank 1
Sensor 1
Short circuit to ground at part or wire harness.
Loss of power.
Rough engine running.
Sensor lambda 1
► Check wiring in the wire harness to the
affected part. (See chapter 7 Wiring
diagram.)
► Replace the affected part. (See the repair
manual.)