Code Definition

B16D7 (15) — ITM Arming Sequence Performance

System: Body  |  Type: Manufacturer-Specific  |  Make: Ram

About B16D7

B16D7 is a manufacturer-specific body diagnostic trouble code recorded for Ram vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B16D7 is stored, the module has detected a plausibility fault — the measured value is in the electrical range but is not consistent with expected operating behaviour.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

B16D7 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Intrusion Transceiver Module (ITM) forms part of the Ram vehicle theft alarm and security system and is responsible for confirming the armed state of the vehicle during the alarm activation sequence. DTC B16D7:15 indicates a circuit fault during the arming process, typically an open circuit or interrupted signal between the Body Control Module (BCM) and the ITM that prevents the expected confirmation response from being received. The fault is logged when the BCM detects that the security system has not transitioned correctly into the armed state at the end of the arming sequence. When this...

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