Cummins fault code 1515
SAE J1939 Multiplexed Accelerator Pedal or Lever Sensor System: network data error
What it means
Cummins' description: SAE J1939 Multiplexed Accelerator Pedal or Lever Sensor System - Received Network Data In Error.
SPN 91 is Accelerator Pedal Position 1. FMI 19 means data received over the vehicle network was flagged as bad by the module that sent it.
The engine ECM talks to the transmission, ABS, dash and aftertreatment modules over the J1939 data network. These codes mean the ECM itself, its calibration, or its communication with other modules has a problem.
What the lamp means
A red stop lamp means Cummins treats this as serious. Stop the engine as soon as you can do it safely and get it checked before running it again.
Green, yellow, red: three ways this can look
The same code can be a quick fix or a reason to shut down. Match your situation to the closest example. Cummins rates this a red stop lamp code, so if the red lamp is on, go by the red example.
Keep an eye on it
A network timeout logged once, often during cranking, that cleared.
Schedule a repair
Gauges dropping out, the transmission or ABS acting odd, or codes returning. Book diagnosis. These can go from annoying to stranded quickly.
Stop and get help
Red lamp for an ECM internal failure, or the engine won't start or shuts down. Get it towed or seen where it sits.
Common causes
The sensor reading itself is out of range or the condition is real, so look at the system:
- ECM calibration doesn't match the vehicle or another module
- ECM internal failure
What you can check before calling
- Note which other systems acted up: gauges, transmission, ABS
- Check for recent electrical work or aftermarket devices plugged into the diagnostic port
- Check batteries and grounds
Clearing the code without fixing the cause usually brings it right back, and on emissions systems it can restart derate timers.
Engines and sources
Listed by Cummins for: QSB 6.7, QSL 9, QSX 15, QSB 4.5, QSF 3.8, QSG 12. Cummins uses the same fault code numbers across its electronic engines, including on-highway models like the ISB/B6.7, ISL/L9 and ISX/X15, though not every code applies to every engine or software level. Source: Cummins Tier 4 Fault Codes. Always confirm with Cummins service information (QuickServe) for your engine serial number.
Same SPN, other failure types
- 131 SPN 91 FMI 3
Accelerator Pedal or Lever Position Sensor 1 Circuit: circuit voltage high / shorted high - 132 SPN 91 FMI 4
Accelerator Pedal or Lever Position Sensor 1 Circuit: circuit voltage low / shorted low - 147 SPN 91 FMI 1
Accelerator Pedal or Lever Position 1 Sensor Circuit Frequency: reading below normal (most severe) - 148 SPN 91 FMI 0
Accelerator Pedal or Lever Position Sensor 1: reading above normal (most severe) - 287 SPN 91 FMI 19
SAE J1939 Multiplexing Accelerator Pedal Sensor System Error: network data error - 1242 SPN 91 FMI 2
Accelerator Pedal or Lever Position Sensor 1: erratic or intermittent signal - 1358 SPN 91 FMI 3
Accelerator Pedal or Lever Position Sensor 1 Circuit: circuit voltage high / shorted high - 1359 SPN 91 FMI 4
Accelerator Pedal or Lever Position Sensor 1 Circuit: circuit voltage low / shorted low
Related ECM, network and data link codes
- 1257 SPN 1563 FMI 2
Control Module Identification Input State Error: erratic or intermittent signal - 1256 SPN 1563 FMI 2
Control Module Identification Input State Error: erratic or intermittent signal - 699 SPN 1136 FMI 2
Engine ECU Temperature: erratic or intermittent signal - 698 SPN 1136 FMI 4
Engine ECU Temperature Sensor Circuit: circuit voltage low / shorted low - 697 SPN 1136 FMI 3
Engine ECU Temperature Sensor Circuit: circuit voltage high / shorted high - 427 SPN 639 FMI 9
SAE J1939 Datalink: abnormal update rate
Look up another code
Cummins fault code (like 1922), J1939 SPN and FMI (like SPN 3251 FMI 0), or an OBD-II code (like P0420).
Questions
What does Cummins fault code 1515 mean?
Cummins fault code 1515 is J1939 SPN 91 FMI 19: SAE J1939 Multiplexed Accelerator Pedal or Lever Sensor System - Received Network Data In Error. In plain terms: sae j1939 multiplexed accelerator pedal or lever sensor system: network data error.
Can I keep driving with Cummins code 1515?
No. Cummins assigns this code a red stop lamp. Stop the engine as soon as it's safe and have it checked before running it again. Look at the green, yellow and red examples on this page to judge your situation.
What is the SPN and FMI for Cummins code 1515?
SPN 91 identifies the part or system (Accelerator Pedal Position 1). FMI 19 describes the type of failure: network data error.
What usually causes Cummins code 1515?
The most common causes are: eCM calibration doesn't match the vehicle or another module; eCM internal failure.
Diesel down in the Midlands?
We work on Cummins-powered pickups, vans and medium-duty trucks across Lexington, Columbia and the Midlands, on site at your yard or roadside.