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Discussion Starter #1
I'm having some issues while driving my Armada. Lights come on and engine speed reduces to about 5 mph even if step on the gas it wont go. Any suggestions.

View attachment 50143

The warranty expired. Dealer charges an arm and a leg.

Car Scanner ELM OBD2
DTC report
Selected brand: Nissan
VIN: JN8AY2NC8H9501029

============1==============
P2101
Raw code: 2101
ECU: Engine control unit
Status: Confirmed
OBDII: Throttle actuator control (TAC) motor - range/performance problem

============2==============
P0506
Raw code: 0506
ECU: Engine control unit
Status: Confirmed
OBDII: Idle speed control (ISC) system - rpm lower than expected
Nissan: Idle Control System RPM lower Than Expected

============3==============
P2101
Raw code: 2101
ECU: Engine control unit
Status: Validated fault present at time of request, Validated fault has been present during this drive cycle
OBDII: Throttle actuator control (TAC) motor - range/performance problem

============4==============
P0506
Raw code: 0506
ECU: Engine control unit
Status: Validated fault present at time of request, Validated fault has been present during this drive cycle
OBDII: Idle speed control (ISC) system - rpm lower than expected
Nissan: Idle Control System RPM lower Than Expected

============5==============
P1705(00)
Raw code: 170500
ECU: Transmission control unit[Archive (inactive)]
Status: Confirmed
OBDII: Not in P or N During KOEO / KOER
Nissan: Not in P or N During KOEO / KOER; TP Sensor A/T

============6==============
C1118(00)
Raw code: 511800
ECU: ABS control unit[Archive (inactive)]
Status: Confirmed

============7==============
C1130(00)
Raw code: 513000
ECU: ABS control unit[Archive (inactive)]
Status: Confirmed

============8==============
P1830
Raw code: 1830
ECU: All wheel drive system (AWD/4WD)
Status: Pending fault present, Pending fault present during this driving cycle, Test conditions are met, Validated fault has been present during this drive cycle
OBDII: Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery
Nissan: Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery

============9==============
P1829
Raw code: 1829
ECU: All wheel drive system (AWD/4WD)
Status: Pending fault present, Pending fault present during this driving cycle, Test conditions are met, Validated fault has been present during this drive cycle
OBDII: Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit
Nissan: Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit

These are the codes


Car Scanner ELM OBD2
DTC report
Selected brand: Nissan
VIN: JN8AY2NC8H9501029

============1==============
P2101
Raw code: 2101
ECU: Engine control unit
Status: Confirmed
OBDII: Throttle actuator control (TAC) motor - range/performance problem

============2==============
P0506
Raw code: 0506
ECU: Engine control unit
Status: Confirmed
OBDII: Idle speed control (ISC) system - rpm lower than expected
Nissan: Idle Control System RPM lower Than Expected

============3==============
P2101
Raw code: 2101
ECU: Engine control unit
Status: Validated fault present at time of request, Validated fault has been present during this drive cycle
OBDII: Throttle actuator control (TAC) motor - range/performance problem

============4==============
P0506
Raw code: 0506
ECU: Engine control unit
Status: Validated fault present at time of request, Validated fault has been present during this drive cycle
OBDII: Idle speed control (ISC) system - rpm lower than expected
Nissan: Idle Control System RPM lower Than Expected

============5==============
P1705(00)
Raw code: 170500
ECU: Transmission control unit[Archive (inactive)]
Status: Confirmed
OBDII: Not in P or N During KOEO / KOER
Nissan: Not in P or N During KOEO / KOER; TP Sensor A/T

============6==============
C1118(00)
Raw code: 511800
ECU: ABS control unit[Archive (inactive)]
Status: Confirmed

============7==============
C1130(00)
Raw code: 513000
ECU: ABS control unit[Archive (inactive)]
Status: Confirmed

============8==============
P1830
Raw code: 1830
ECU: All wheel drive system (AWD/4WD)
Status: Pending fault present, Pending fault present during this driving cycle, Test conditions are met, Validated fault has been present during this drive cycle
OBDII: Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery
Nissan: Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery

============9==============
P1829
Raw code: 1829
ECU: All wheel drive system (AWD/4WD)
Status: Pending fault present, Pending fault present during this driving cycle, Test conditions are met, Validated fault has been present during this drive cycle
OBDII: Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit
Nissan: Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit
 

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5,977 Posts
need more info.

what model year? trim?
did you purchase used?
if used, any maintenance records?
have you had the obd port scanned for any codes? if not this is the first step.
mileage?
 

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4 Posts
Discussion Starter #3
2017 SV. Bought through Carvana 3 Years ago but started problems 2 months ago. Used obd2 it said it was the throttle body and abs sensor. Replaced throttle body and abs sensors. Still acting up
 

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5,977 Posts
are you still getting codes?
were the parts used or new? are they oem or generic/aftermarket?
did you do the repairs?

list the codes you got . even if you are not seeing any after the repairs.
 

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4 Posts
Discussion Starter #5
The warranty expired. Dealer charges an arm and a leg.
need more info.

what model year? trim?
did you purchase used?
if used, any maintenance records?
have you had the obd port scanned for any codes? if not this is the first step.
mileage?
Car Scanner ELM OBD2
DTC report
Selected brand: Nissan
VIN: JN8AY2NC8H9501029

============1==============
P2101
Raw code: 2101
ECU: Engine control unit
Status: Confirmed
OBDII: Throttle actuator control (TAC) motor - range/performance problem

============2==============
P0506
Raw code: 0506
ECU: Engine control unit
Status: Confirmed
OBDII: Idle speed control (ISC) system - rpm lower than expected
Nissan: Idle Control System RPM lower Than Expected

============3==============
P2101
Raw code: 2101
ECU: Engine control unit
Status: Validated fault present at time of request, Validated fault has been present during this drive cycle
OBDII: Throttle actuator control (TAC) motor - range/performance problem

============4==============
P0506
Raw code: 0506
ECU: Engine control unit
Status: Validated fault present at time of request, Validated fault has been present during this drive cycle
OBDII: Idle speed control (ISC) system - rpm lower than expected
Nissan: Idle Control System RPM lower Than Expected

============5==============
P1705(00)
Raw code: 170500
ECU: Transmission control unit[Archive (inactive)]
Status: Confirmed
OBDII: Not in P or N During KOEO / KOER
Nissan: Not in P or N During KOEO / KOER; TP Sensor A/T

============6==============
C1118(00)
Raw code: 511800
ECU: ABS control unit[Archive (inactive)]
Status: Confirmed

============7==============
C1130(00)
Raw code: 513000
ECU: ABS control unit[Archive (inactive)]
Status: Confirmed

============8==============
P1830
Raw code: 1830
ECU: All wheel drive system (AWD/4WD)
Status: Pending fault present, Pending fault present during this driving cycle, Test conditions are met, Validated fault has been present during this drive cycle
OBDII: Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery
Nissan: Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery

============9==============
P1829
Raw code: 1829
ECU: All wheel drive system (AWD/4WD)
Status: Pending fault present, Pending fault present during this driving cycle, Test conditions are met, Validated fault has been present during this drive cycle
OBDII: Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit
Nissan: Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit

These are the codes


Car Scanner ELM OBD2
DTC report
Selected brand: Nissan
VIN: JN8AY2NC8H9501029

============1==============
P2101
Raw code: 2101
ECU: Engine control unit
Status: Confirmed
OBDII: Throttle actuator control (TAC) motor - range/performance problem

============2==============
P0506
Raw code: 0506
ECU: Engine control unit
Status: Confirmed
OBDII: Idle speed control (ISC) system - rpm lower than expected
Nissan: Idle Control System RPM lower Than Expected

============3==============
P2101
Raw code: 2101
ECU: Engine control unit
Status: Validated fault present at time of request, Validated fault has been present during this drive cycle
OBDII: Throttle actuator control (TAC) motor - range/performance problem

============4==============
P0506
Raw code: 0506
ECU: Engine control unit
Status: Validated fault present at time of request, Validated fault has been present during this drive cycle
OBDII: Idle speed control (ISC) system - rpm lower than expected
Nissan: Idle Control System RPM lower Than Expected

============5==============
P1705(00)
Raw code: 170500
ECU: Transmission control unit[Archive (inactive)]
Status: Confirmed
OBDII: Not in P or N During KOEO / KOER
Nissan: Not in P or N During KOEO / KOER; TP Sensor A/T

============6==============
C1118(00)
Raw code: 511800
ECU: ABS control unit[Archive (inactive)]
Status: Confirmed

============7==============
C1130(00)
Raw code: 513000
ECU: ABS control unit[Archive (inactive)]
Status: Confirmed

============8==============
P1830
Raw code: 1830
ECU: All wheel drive system (AWD/4WD)
Status: Pending fault present, Pending fault present during this driving cycle, Test conditions are met, Validated fault has been present during this drive cycle
OBDII: Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery
Nissan: Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery

============9==============
P1829
Raw code: 1829
ECU: All wheel drive system (AWD/4WD)
Status: Pending fault present, Pending fault present during this driving cycle, Test conditions are met, Validated fault has been present during this drive cycle
OBDII: Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit
Nissan: Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit
 

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5,977 Posts
the ECM is seen often in these codes, so that may be your issue. there could be wiring issues so you should check the continuity in the main wiring harness.
 

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Premium Member
Joined
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1,344 Posts
You’ll need a full range scan/diagnostic tool or a shop that utilizes one in order to figure out what’s causing these DTCs.
No point in spending money in replacing parts that doesn’t fix the issues.
Also, anytime the throttle plate is manually pushed when cleaning the throttle body or even when the throttle body connector is unplugged, there is a relearn procedure that is necessary.
 

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Premium Member
Joined
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269 Posts
primov8........exactly right! If you replaced a throttle body and did not have a scan tool capable of relearning the base idle correctly....you have NO Chance of fixing it! The PCM is turning a lot of these systems off due to no control over throttle body. Get the idle learned first, then see what you have left.
 
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