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05 Titan off road. P01819 No 4x4 Power and grounds good at…

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05 Titan off road. P01819 No...
05 Titan off road. P01819
No 4x4
Power and grounds good at module,load checked used headlight.
All four relays pass bench test with load.
Module pids show command of 4x4switch.
Can run transfer case motor with power probe 4x4works.
Looking like a module,other tests.
Thank you J-R
Submitted: 2 years ago.Category: Nissan
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Answered in 14 minutes by:
2/12/2016
Nissan Mechanic: Mike S., ASE Certified Technician replied 2 years ago
Mike S.
Mike S., ASE Certified Technician
Category: Nissan
Satisfied Customers: 8,136
Experience: ASE Certified since 1985
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P01819 is too many digits, that is an invalid code, recheck it and correct the code.

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Customer reply replied 2 years ago
P1819
Nissan Mechanic: Mike S., ASE Certified Technician replied 2 years ago

Great, I still need some more info, is this a LE SE, XE and what engine gas or flex? I see they are all 5.6l

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Customer reply replied 2 years ago
4.0 don't think it flex
5n1an08w95c635430
Nissan Mechanic: Mike S., ASE Certified Technician replied 2 years ago

That decodes as an Xterra with a 4.0. I thought you said this was a Titan?

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Nissan Mechanic: Mike S., ASE Certified Technician replied 2 years ago

First erase self-diagnostic results. SHIFT ACT CIR [P1819] may be displayed after installing transfer control unit or transfer assembly.

This code refers to a malfunction detected in transfer shut off relay 1 and transfer shut off relay 2 or a malfunction in the transfer control device drive circuit.

Here are the tests that I have found, POWER SUPPLY CIRCUIT FOR TRANSFER CONTROL UNIT check and TRANSFER CONTROL DEVICE.

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Nissan Mechanic: Mike S., ASE Certified Technician replied 2 years ago

Step 5 here says, is that why you thought it needed a new module?

PERFORM SELF-DIAGNOSIS (WITH CONSULT-II)

With CONSULT-II

  1. Turn ignition switch "ON". (Do not start engine.)
  2. Select "SELF-DIAG RESULTS" mode for "ALL MODE AWD/4WD" with CONSULT-II.
  3. Touch "ERASE".
  4. Turn ignition switch "OFF" and wait at least 10 seconds.
  5. Perform the self-diagnosis again.

Is the "SHIFT ACT CIR [P1819]" displayed?

  • YES: Replace transfer control unit. Refer to , "REMOVAL AND INSTALLATION ".
  • NO: Inspection End.
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Customer reply replied 2 years ago
No
With all power and grounds good
Relays good
Motor works,power probe=low current draw
Nissan Mechanic: Mike S., ASE Certified Technician replied 2 years ago

I don't know what you just said. I gave you all I had.

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Customer reply replied 2 years ago
You asked if I failed the module per step
5
Nissan Mechanic: Mike S., ASE Certified Technician replied 2 years ago

Ok, a simple no would suffice. That is all the tests I have.

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