Cummins fault code · ECM, network and data link

Cummins fault code 269

Antitheft Password Valid Indicator: erratic or intermittent signal

J1939 SPN1195
FMI2
LampRed stop lamp
SystemECM, network and data link

What it means

Cummins' description: Antitheft Password Valid Indicator - Data erratic, intermittent or incorrect.

SPN 1195 is Anti-theft Password Valid Indicator. FMI 2 means the signal is jumping around, dropping in and out, or doesn't make sense compared to other readings.

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.

How serious is it?

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.

Green

Keep an eye on it

A network timeout logged once, often during cranking, that cleared.

Yellow

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.

Red

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: QSX 15. 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.

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 269 mean?

Cummins fault code 269 is J1939 SPN 1195 FMI 2: Antitheft Password Valid Indicator - Data erratic, intermittent or incorrect. In plain terms: antitheft password valid indicator: erratic or intermittent signal.

Can I keep driving with Cummins code 269?

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 269?

SPN 1195 identifies the part or system (Anti-theft Password Valid Indicator). FMI 2 describes the type of failure: erratic or intermittent signal.

What usually causes Cummins code 269?

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.

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