Caterpillar Fault Codes List: All about Cat's SPN, FMI, CID, and MID codes and how to decipher them (2024)

FAQs

What is the CID code on a caterpillar? ›

CID Component Identifier

The CID helps pinpoint a specific circuit or system, usually within the MID. E.g. CID 854 - Brake Oil Temperature Sensor (Right Rear), is related to MID 116.

Module (MID), Component (CID), and Failure Mode (FMI), are information identifiers that help. service personnel diagnose the system problems of a Caterpillar ® machine.

SPN is short for suspect parameter number. It identifies which electrical circuit, part or component of your truck isn't working properly. FMI stands for failure mode identifier—this part of the fault code tells you what type of problem your truck has.

Credit Card Identification Code(Security Code/CVV/CVC/CID):

The Credit Card Identification Code, or "Card Code," is a 3 or 4 digit Security code that is printed on the back of credit cards in reverse italics in the card signature panel (or on the front for American Express cards).

The CID (card identification) number is the four-digit, non-embossed number printed above your account number on the face of your card. This number is recorded as an additional security precaution. The issuing bank contact number and the CID are normally submitted when the magnetic strip on your credit card is swiped.

Failure Mode Identifiers (FMI) are used to communicate what the ECU has detected, not the root cause of the problem. For example 100-03 “Engine Oil Pressure: Voltage above normal”. The system detected that the signal voltage from this sensor input went above the valid voltage range.

MESSAGE IDENTIFIERS (MID'S)

The MID tells which system it is coming from. Each component on a truck (Engine, transmission, ABS, etc…) all have a MID that is used. There are hundreds of MIDs that are defined, but only a handful are commonly used. Here are the most common ones: MID 128 = Engine.

Failure Mode Identifier (FMI) Codes on J1939 data link. The FMI is used along with the SPN to provide specific information that relates to a diagnostic trouble code (DTC). The FMI may indicate that a problem with an electronic circuit or an electronic component has been detected.

Next, we see SPN which stands for suspect parameter number, this is used to identify the specific component or condition that is triggering a fault. In our example, we see SPN 3216, when looked up this SPN shows that there is an issue with the Aftertreatment Intake NOx sensor.

Description. The SPN 0 FMI 10 code indicates that the engine is not receiving the proper amount of fuel. The most likely cause of this is a problem with the fuel injectors. Article. The DTC SPN 0 FMI 10 is a diagnostic trouble code that indicates a problem with the engine coolant temperature sensor.

What is spn 168 fmi 1 caterpillar? ›

SPN 168/FMI 1

Description This fault code sets when the Integrated Predictive Powertrain Control (IPPC) module detects that the battery voltage is too low.

For Visa, MasterCard, JCB, and Discover, the card security code (CVV, CVC, CID) is the last 3 digit number located on the back of your card on or above your signature line. For American Express and Diners Club, it is the 4 digits on the FRONT above the end of your card number.

It is a three or four digit value which provides our payment system with a check of your credit card's authenticity. The terms are generally used interchangeably. CVV2 stands for "Card Verification Value 2", CVC2 stands for "Card Validation Code 2", and CID stands for "Card Identification Number".

cat. codes assigns a numerical value to the (ordinal) categorical variables. It returns an array of numbers that are paired with the categorical variables (as well as the index). This allows you to do summary statistics on a column of data.

Initially, Cat dozers were named with letter modifiers to differentiate machines that existed within the same size class, such as D6T, D6N and D6K2. Recently, Caterpillar decided to remove the letters in dozer names and arrange them from smallest to largest, with only one model per class size.