This C15 PTO throttle DTCs document is a troubleshooting manual for diagnostic code 0030-13 PTO Throttle out of calibration on C15 on-highway truck engines. It explains when the ECM sets PID 0030 FMI 13, how the engine responds, and which Remote PTO Accelerator Position Sensor Circuit test is used to isolate the fault.
Official C15 PTO throttle DTCs document details
| Brand | CAT |
|---|---|
| Model coverage | C15 Truck Engine MXS; C15 On-Highway Truck MXS00001-UP |
| System/Group | C15 (MXS, NKS, or RKS) / DTCs; PTO throttle and remote accelerator position sensor circuit |
| Publication no. | RENR5088-10 |
| Year/Revision | Publication Date 01/02/2009; Date Updated 25/02/2009 |
| Pages | 14 |
| File size | 0.3 MB |
| Format | |
| Language | English |
Document table of contents
- 0030-13 PTO Throttle out of calibration (29)
- Conditions Which Generate This Code
- System Response
- Possible Performance Effect
- Troubleshooting
- Remote PTO Accelerator Position Sensor Circuit – Test
- System Operation Description
- Remote Accelerator Position Sensor
- Schematic for remote accelerator pedal position sensor
- Test Step 1. Check the Status for the “PTO Accelerator Sensor”
- Check connectors, pins, sockets, harness abrasion, corrosion, and pinch points
- Test Step 3. Check the Supply Voltage for the Remote Accelerator Position Sensor
- Check power train data link influence on throttle response
- Check the Duty Cycle of the Remote Accelerator Position Sensor at the ECM
- Sensor removal, pigtail inspection, and sensor slot duty cycle check
- Final wiring and intermittent electrical problem checks
Applicable truck models
This manual applies to the Caterpillar C15 On-Highway Truck MXS configuration listed as MXS00001-UP. The extract identifies the product as TRUCK ENGINE and the model as C15 TRUCK ENGINE MXS; it does not add confirmed NKS or RKS configuration ranges. The procedure is relevant where PTO Configuration is programmed to “Remote Throttle”, the remote accelerator position sensor connects to ECM terminal P1-68, and the PTO on/off switch is used for PTO mode. For brand information, visit Caterpillar official website.
Who needs this C15 PTO throttle DTCs manual
Mechanics and workshop owners need this manual when a C15 remains at low idle with an active 30-13 PTO Throttle out of calibration code or when Cat ET shows “DIAG” beside “Throttle Position”. It supports diagnosis of the remote accelerator position sensor, supply voltage, duty cycle signal, ECM connector wiring, and power train data link limits.
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