THE CODE DIRECTORY
Diagnostic code references — Page 89.
Browse canonical reference entries. Each definition keeps its own source and vehicle-applicability limits.
Generic OBD-II
P2766
Input/Turbine Shaft Speed Sensor B Circuit Range/Performance
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Generic OBD-II
P2767
Input/Turbine Shaft Speed Sensor B Circuit No Signal
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Generic OBD-II
P2768
Input/Turbine Shaft Speed Sensor B Circuit Intermittent
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Generic OBD-II
P2769
Converter-clutch circuit low describes a ground-side electrical category
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Generic OBD-II
P276A
Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit/Open
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Generic OBD-II
P276B
Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit Low
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Generic OBD-II
P276C
Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit High
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Generic OBD-II
P276D
Electric/Auxiliary Transmission Fluid Pump B Motor Current
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Generic OBD-II
P276E
Electric/Auxiliary Transmission Fluid Pump B Motor Current Low
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Generic OBD-II
P276F
Electric/Auxiliary Transmission Fluid Pump B Motor Current High
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Generic OBD-II
P2770
Converter-clutch circuit high is separate from a clutch that will not release
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Generic OBD-II
P2771
4WD low switch state versus the calculated transfer ratio
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Generic OBD-II
P2772
Four Wheel Drive (4WD) Low Switch Circuit Range/Performance
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Generic OBD-II
P2773
Four Wheel Drive (4WD) Low Switch Circuit Low
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Generic OBD-II
P2774
Four Wheel Drive (4WD) Low Switch Circuit High
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Generic OBD-II
P2775
An upshift paddle can be electrically plausible yet between valid states
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Generic OBD-II
P2776
Upshift input low needs a calibration check before applying the number
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Generic OBD-II
P2777
Upshift paddle circuit high is a timed electrical limit
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Generic OBD-II
P2778
Upshift Switch Circuit Intermittent/Erratic
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Generic OBD-II
P2779
Downshift plausibility rejects a value that fits neither switch state
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Generic OBD-II
P277A
Electric/Auxiliary Transmission Fluid Pump B Hydraulic Leakage
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Generic OBD-II
P277B
Electric/Auxiliary Transmission Fluid Pump B Driver Circuit Performance
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Generic OBD-II
P277C
Electric/Auxiliary Transmission Fluid Pump B Motor Stalled
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Generic OBD-II
P277D
Electric/Auxiliary Transmission Fluid Pump B Motor Over Temperature
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Generic OBD-II
P277E
Odd-side gear loss is detected while the clutch is not slipping
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Generic OBD-II
P277F
Even-side gear loss requires more than a neutral indication
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Generic OBD-II
P2780
Downshift circuit low has a printed threshold conflict to resolve
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Generic OBD-II
P2781
A downshift input-high fault concerns voltage, not a held paddle
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Generic OBD-II
P2782
Downshift Switch Circuit Intermittent/Erratic
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Generic OBD-II
P2783
Torque Converter Temperature Too High
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Generic OBD-II
P2784
Input/Turbine Speed Sensor A/B Correlation
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Generic OBD-II
P2785
Clutch Actuator Temperature Too High
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Generic OBD-II
P2786
Gear Shift Actuator Temperature Too High
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Generic OBD-II
P2787
Clutch A Temperature Too High
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Generic OBD-II
P2788
Auto Shift Manual Adaptive Learning at Limit
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Generic OBD-II
P2789
Clutch A Adaptive Learning at Limit
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Generic OBD-II
P278A
Kick Down Switch Circuit
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Generic OBD-II
P278B
Kick Down Switch Circuit Range/Performance
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Generic OBD-II
P278C
Kick Down Switch Circuit Low
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Generic OBD-II
P278D
Kick Down Switch Circuit High
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Generic OBD-II
P278E
Kick Down Switch Circuit Intermittent/Erratic
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Generic OBD-II
P278F
Clutch B Adaptive Learning at Limit
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Generic OBD-II
P2790
Gate Select Direction Circuit
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Generic OBD-II
P2791
Gate Select Direction Circuit Low
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Generic OBD-II
P2792
Gate Select Direction Circuit High
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Generic OBD-II
P2793
Gear Shift Direction Circuit
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Generic OBD-II
P2794
Gear Shift Direction Circuit Low
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Generic OBD-II
P2795
Gear Shift Direction Circuit High
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Generic OBD-II
P2796
Auxiliary transmission-pump motor circuit is diagnosed open
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Generic OBD-II
P2797
CVT auxiliary pump supplies inadequate pressure during an auto-stop event
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Generic OBD-II
P2798
Auxiliary transmission-pump control circuit is electrically low
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Generic OBD-II
P2799
Auxiliary transmission-pump control circuit detects unwanted power
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Generic OBD-II
P279A
transfer-case high-range command disagrees with measured ratio
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Generic OBD-II
P279B
transfer-case low-range command disagrees with measured ratio
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Generic OBD-II
P279C
transfer-case range information that needs a careful cross-check
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Generic OBD-II
P279D
Four Wheel Drive (4WD) Range Signal Circuit
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Generic OBD-II
P279E
Four Wheel Drive (4WD) Range Signal Circuit Range/Performance
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Generic OBD-II
P279F
Four Wheel Drive (4WD) Range Signal Circuit Low
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Generic OBD-II
P27A0
Four Wheel Drive (4WD) Range Signal Circuit High
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Generic OBD-II
P27A1
Electric/Auxiliary Transmission Fluid Pump A Stuck On
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Generic OBD-II
P27A2
Electric/Auxiliary Transmission Fluid Pump B Control Circuit/Open
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Generic OBD-II
P27A3
Electric/Auxiliary Transmission Fluid Pump B Performance/Stuck Off
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Generic OBD-II
P27A4
Electric/Auxiliary Transmission Fluid Pump B Control Circuit Low
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Generic OBD-II
P27A5
Electric/Auxiliary Transmission Fluid Pump B Control Circuit High
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Generic OBD-II
P27A6
Electric/Auxiliary Transmission Fluid Pump B Stuck On
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Generic OBD-II
P27A7
Solenoid A characterization data does not match a valid programmed set
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Generic OBD-II
P27A8
Solenoid B data fails the transmission controller’s compatibility check
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Generic OBD-II
P27A9
Solenoid C calibration data fails completeness or integrity checks
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Generic OBD-II
P27AA
Solenoid D characterization is not accepted as correctly programmed
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Generic OBD-II
P27AB
Solenoid E characterization data is missing, incompatible or invalid
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Generic OBD-II
P27AC
Solenoid F stored characterization does not pass startup validation
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Generic OBD-II
P27AD
pressure-control solenoid G characterization data is invalid
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Generic OBD-II
P27AE
pressure-control solenoid H characterization fails validation
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Generic OBD-II
P27AF
Pressure Control Solenoid J Data Incompatible
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Generic OBD-II
P27B0
Pressure Control Solenoid K Data Incompatible
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Generic OBD-II
P27B1
Internal Control Module Transmission Range Select Performance
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Generic OBD-II
P27B2
Range-control supervision can involve parking-lock safety
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Generic OBD-II
P27B3
The transmission architecture determines what this supervision code means
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Generic OBD-II
P27B4
Gear-direction supervision distinguishes launch from wrong-direction events
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Generic OBD-II
P27B5
Overspeed protection and ratio plausibility are different supervision branches
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Generic OBD-II
P27B6
Transmission tie-up protection and deceleration supervision need different context
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Generic OBD-II
P27B9
Shift solenoid two stuck-off is checked with controlled rod movements
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Generic OBD-II
P27BA
A stuck-on shift valve is inferred from two rods moving differently
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Generic OBD-II
P27BB
Pressure Control Solenoid N Electrical
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Generic OBD-II
P27BC
Pressure Control Solenoid N Intermittent
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Generic OBD-II
P27BD
Shift valve two open-load is assessed with the output off
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Generic OBD-II
P27BE
Pressure Control Solenoid N Control Circuit Range/Performance
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Generic OBD-II
P27BF
Shift valve two circuit-low concerns driver feedback during switching
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Generic OBD-II
P27C0
Shift valve two circuit-high has a shutdown cross-circuit check too
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Generic OBD-II
P27C1
Valve three stuck-off needs a second path to validate rod feedback
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Generic OBD-II
P27C2
Valve three stuck-on is a paired rod-response pattern
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Generic OBD-II
P27C3
Pressure Control Solenoid P Electrical
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Generic OBD-II
P27C4
Pressure Control Solenoid P Intermittent
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Generic OBD-II
P27C5
An open valve-three circuit is evaluated before hydraulic conclusions
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Generic OBD-II
P27C6
Pressure Control Solenoid P Control Circuit Range/Performance
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Generic OBD-II
P27C7
Valve-three low-circuit diagnosis requires its electrical test context
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Generic OBD-II
P27C8
Valve-three circuit high can be retained from a shutdown test
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Generic OBD-II
P27C9
Valve-four stuck-off compares failed motion with a working alternate path
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Generic OBD-II
P27CA
Valve-four stuck-on requires unexpected travel and partner relaxation
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Generic OBD-II
P27CB
Pressure Control Solenoid R Electrical
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These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.