vt codes

[Garth]

12 Engine Speed Detection No RPM Input
(Normal when Engine is Not Running)
No Crankshaft Reference Signal
(Check Wiring, DIS Module, Crankshaft Position Sensor)
Note
Does NOT illuminate the Powertrain Checklight
13 Oxygen Sensor (Right bank) No Input Signal
Check Oxygen Sensor, Wiring or Connector
14 Engine Coolant Temperature Sensor Voltage Signal LOW
Temperature Sensor
Note
See Engine Coolant Temperature Sensor
15 Engine Coolant Temperature Sensor Voltage Signal HIGH
Temperature Sensor
Note
See Engine Coolant Temperature Sensor
16 Engine Coolant Temperature Sensor Voltage Signal Unstable
Temperature Sensor Open or Short Circuit (Intermittent)
Wiring or Connectors Open or Short Circuit (Intermittent)
Note
Does NOT illuminate the Powertrain Checklight
See Engine Coolant Temperature Sensor

17 Powertrain Control Module Engine Coolant Circuit.
Failure of PCM Circuit Resistor
Note
Does NOT illuminate the Powertrain Checklight
See Engine Coolant Temperature Sensor
18 EGR System (Non Supercharged)
Incorrect Gas Flow
EGR Valve Problem, Wiring or Connector
Note
Does NOT illuminate the Powertrain Checklight
19 Throttle Position Sensor Sensor Jammed
Mechanical problem with Throttle Position Sensor (Broken Internal Spring)
21 Throttle Position Sensor Voltage Signal HIGH
Circuit possibly Shorted to Voltage
22 Throttle Position Sensor Voltage Signal LOW
Circuit possibly Shorted to Ground
23 Intake Air Temperature Sensor Voltage Signal HIGH
Sensor Faulty, Wiring or Connector
Note
Does NOT illuminate the Powertrain Checklight
24 Vehicle Speed Sensor Automatic Transmission
Signal Input Unchanging (While decelerating)
Note
Sensor Faulty, Wiring or Connector
25 Intake Air Temperature Sensor Voltage Signal LOW
Sensor Faulty, Wiring or Connector
Note
Does NOT illuminate the Powertrain Checklight
26 Intake Air Temperature Sensor Voltage Signal Unstable
Sensor Faulty, Wiring or Connector Intermittent
Note
Does NOT illuminate the Powertrain Checklight
29 Exhaust Gas Recirculation (EGR) System: Pintle Position Fault
(EGR Position Sensor inside the EGR Valve)
Pintle Jammed
EGR Valve Failure
Note
Does NOT illuminate the Powertrain Checklight
31 Theft Deterrent System: No Signal
(Anti-theft communication between PCM and BCM)
32 Mass Air Flow Sensor
(No adjustments possible on this component)
Voltage Signal Out of Range
Sensor Faulty, Wiring or Connector
35 Idle Speed Monitor
Idle Speed Error
Sensor Faulty , Wiring or Connector
Note
Does NOT illuminate the Powertrain Checklight
36 Vacuum Monitor
Vacuum Leak
Vacuum Hoses, Clamps and fittings
Idle Speed Controller Faulty or Sticking
Note
Does NOT illuminate the Powertrain Checklight
41 Electronic Spark Timing Timing Pulse Problem
(Code sets when Cranking)
PCM Terminal# D10 to DIS Module Terminal A
Wiring Circuit Problem - Open or Ground
NOTE
DIS Module Problem
42 Electronic Spark Timing Bypass Circuit Fault
(Code sets above 1600 RPM)
DIS module, Wiring or Connector
43 Knock Sensor Voltage Signal Outside of Specifications
(Too Low or Too High)
Sensor Faulty, Interference in Circuit
Incorrect Mass Air Flow Sensor frequency output (Low)
Incorrect Engine Coolant Temperature Sensor resistance (High)
Note
Does NOT illuminate the Powertrain Checklight
44 Oxygen Sensor (Right Bank) Signal Indicates Too Lean
Sensor Faulty, Wiring or Connector
Mechanical Problem
45 Oxygen Sensor (Right Bank) Signal Indicates Too Rich
Sensor Faulty, Wiring or Connector
Mechanical Problem
46 Direct Ignition System No Crankshaft Reference Signal
(Received by PCM when Engine cranks)
DIS Module Problem
Wiring or Connector (DIS Module Terminal D to PCM Terminal #D12)
47 Direct Ignition System / Crankshaft Position Sensor Missing 18X Signal
DIS Module
Crankshaft Position Sensor
Wiring or Connector
Note
Does NOT illuminate the Powertrain Checklight
48 Camshaft Position Sensor No Signal (Received by PCM)
Sensor Fault, Wiring or Connector
Note
Does NOT illuminate the Powertrain Checklight
49 Camshaft Position Sensor Signal Intermittent (Received by PCM)
Sensor Fault, Wiring or Connector
Note
Does NOT illuminate the Powertrain Checklight
51 PCM PROM Error Code
PROM Module
PCM Module
52 System Voltage High (16 V for 109 min.)
Alternator
53 System Voltage High (19.5 V for 2 sec.)
Battery, Alternator, Wiring or Connector
54 Voltage Monitor, Voltage Unstable
Battery, Alternator, Wiring or Connector
55 PCM - Analogue to Digital Signal Converter Error Code
PCM Module
56 Exhaust Oxygen Content (Supercharged Models)
Lean Condition Under Load
Mechanical Problem
57 Fuel Injector Voltage Monitor (Voltage Out of Range)
Main Relay, Battery, Alternator, Wiring or Connector
Note
Does NOT illuminate the Powertrain Checklight
58 Transmission Fluid Temp Voltage Low
Wiring, Sensor
Note
Does NOT illuminate the Powertrain Checklight
59 Transmission Fluid Temp Voltage High
Wiring, Sensor or Connector
63 Oxygen Sensor (Left Bank) No Input Signal
Take a look at Oxygen Sensor, Wiring or Connector
64 Oxygen Sensor (Left Bank) Signal Indicates Lean Exhaust Gas
Oxygen Sensor
Engine Mechanical Problem
65 Oxygen Sensor (Left Bank) Signal Indicates Rich Exhaust Gas
Oxygen Sensor
Engine Mechanical Problem
66 3-2 Shift Control Solenoid Circuit Fault
Solenoid, Wiring or Connector
Note
Does NOT illuminate the Powertrain Checklight
67 Torque Converter Clutch On-Off Solenoid Control Circuit
inspect
Solenoid, Wiring or Connector
69 Torque Converter Clutch Stuck On
Wiring, Mechanical Problem
Note
Does NOT illuminate the Powertrain Checklight
72 Vehicle Speed Sensor Intermittent While Driving
Sensor, Wiring or Connector
73 Pressure Control Solenoid Current
Solenoid, Wiring or Connector
75 System Voltage Low
Wiring, Alternator or Connector
76 PCM Fuel Trim Circuit - Short Term Fuel Trim (High)
PCM Module
Mechanical Problem causing Fuel Trim adjust to maximum
Note
Does NOT illuminate the Powertrain Checklight

78 PCM Fuel Trim Circuit - Long Term Fuel Trim (High)
PCM Module
Mechanical Problem causing Fuel Trim adjust to maximum
Note
Does NOT illuminate the Powertrain Checklight
79 Transmission Temp Too High
Slipping, Overheating, Wiring, Sensor
81 2-3 Shift Control Solenoid Circuit Fault
Check Solenoid, Wiring or Connector
82 1-2 Shift Control Solenoid Circuit Fault
Solenoid, Wiring or Connector
83 Torque Converter Clutch Pulse Width Modulation Circuit
Wiring or Connector
Note
Does NOT illuminate the Power train Check light
85 Transmission Slipping
Difference between Engine RPM and Transmission Output RPM
Note
Does NOT illuminate the Powertrain Checklight
91 PCM
Quad Driver Module Fault
PCM Module
Note
Does NOT illuminate the Powertrain Checklight
92 Low Speed Fan No Response from BCM
BCM Module, Wiring or Connector
Note
Does NOT illuminate the Powertrain Checklight
93 PCM Filter Circuit for Knock Sensor
Signal Noise Enhancement Filter Fault
PCM Module
Note
Does NOT illuminate the Powertrain Checklight
94 Vehicle Speed Sensor Manual Transmission
(Signal Input Unchanging while decelerating)
Sensor, Wiring or Connector
95 Transmission
Torque requested is out of Range
96 Air Conditioner Pressure Sensor
Sensor Fail Code
Note
Does NOT illuminate the Powertrain Checklight
97 Purge Canister fails to Operate
Solenoid, Wiring or Connector
Note
Does NOT illuminate the Powertrain Checklight