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Help decoding DTC

James Cole

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Hello Guys... I am trying to figure out exactly where the open circuit is for this DTC:


Faults found.
B1DB8
___________________
Error code: B1DB8
No code description found
Short circuit to ground/Open circuit

Last test completed positively
Error intermittent
Failure warning lamp 'ON': Not requested

Code is B1DB8 any help is appreciated.

Thanks!
JC
 
From the FSM:

28 - DTC-Based Diagnostics / MODULE, Body Control (BCM) / Diagnosis and Testing
B1DB8-12-ACCESSORY POWER INVERTER CARGO OUTLET-CIRCUIT SHORT TO BATTERY

For a complete POWER OUTLETS wiring diagram, (refer to the Wiring Information) .

When Monitored and Set Conditions
When Monitored: This diagnostic runs continuously when the following conditions are met:
  • The ignition is on.
  • The battery voltage is between 10.0 and 16.0 volts.
Set Conditions:
  • When the Body Control Module (BCM) detects a short to voltage on the Inverter Switch circuit for greater than 15 seconds.
********************
----=<(OR)>=----
********************

28 - DTC-Based Diagnostics / MODULE, Body Control (BCM) / Diagnosis and Testing
B1DB8-14-ACCESSORY POWER INVERTER CARGO OUTLET-CIRCUIT SHORT TO GROUND OR OPEN

For a complete POWER OUTLETS wiring diagram, (refer to the Wiring Information) .
When Monitored and Set Conditions
When Monitored: This diagnostic runs continuously when the following conditions are met:
  • The ignition is on.
  • The battery voltage is between 10.0 and 16.0 volts.
Set Conditions:
  • When the Body Control Module (BCM) detects a short to ground or open on the Inverter Switch circuit for greater than 15 seconds.

Steve
 
Thanks Steve,

I need to check other DTC B147913, where can I get full info on DTCs from these trucks?

Thanks again,
JC
 
It's difficult to get much on-line info for manufacturer-specific Diagnostic Trouble Codes such as those you are experiencing, but I have a disk-based version of the factory service manual that I purchased just after getting my Ram.
Usually, good OBDII info can be found for many makes of vehicles at https://www.dtcdecode.com.

Again, from the FSM:
B1479-13 - CHANNEL 6 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN

From the illustrations, channel 6 is the passenger side rear door speaker.

EDIT: B1479-13 is listed at the web site I've given, under RAM vehicles. The info there is more informative than what's given in the FSM.

Steve
 
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