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Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS

DTC Circuit Affected
11  Malfunction Indicator Light
12 (1) No RPM Reference Pulse
13  Open Oxygen Sensor Circuit
14  Coolant Temp Sens Sgnl Vltge Low (Hi Temp Indicated)
15  Coolant Temperature Sensor Signal Voltage High
16  Opti-Spark Ignition System Low Resolution Pulse
18  Injector Circuits
21  Throttle Position Sensor Signal Voltage High
22  Throttle Position Sensor Signal Voltage Low
23  IAT Sensor Signal Voltage High (Low Temp Indicated)
24  Vehicle Speed Sensor
25  IAT Sensor Signal Voltage Low (High Temp Indicated)
26  Canister Purge Solenoid
27  EGR Sol Valve
28  Trans. Range Pressure Switch
29  Secondary Air Injection
32  EGR System Error
33  MAP Sensor Signal Voltage High
34  MAP Sensor Signal Voltage Low
36  Opti-Spark High Resolution Pulse
37  TCC Brake Switch Error
38  Brake Switch Error
41  Opti-Spark Ignition System Open Or Shorted EST Ckt
42  IC Circuit Grounded
43  Knock Sensor Circuit (Dual Sensors)
44  Lean Exhaust Indication
45  Rich Exhaust Indication
47  Knock Sensor Module
48  MASS Airflow Sensor
50  System Voltage Low
52  Faulty CAL-PAK
52  Low Engine Oil Temperature
53  System Voltage High
55  PCM Error
55  Fuel Lean Monitor
58  Trans Temperature Sensor High Temperature
59  Trans. Temperature Sensor Low Temperature
62  High Engine Oil Temperature
63  Right Oxygen Sensor Open
64  Right Oxygen Sensor Lean
65  Right Oxygen Sensor Rich
66  A/C Pressure Sensor
67  A/C Pressure Sensor
68  A/C Relay Circuit Shorted
69  A/C Compressor Relay
70  A/C Compressor Relay Driver
72  Vehicle Speed Sensor Loss
73  Pressure Control Solenoid
74  Traction Control Voltage Low
75  Transmission Voltage Low
77  Primary Cooling Fan Driver
78  Secondary Cooling Fan Driver
79  Transmission Fluid Overtemp
81  2-3 Shift Solenoid
82  1-2 Shift Solenoid
83  TCC PWM Solenoid - A/T
84  3-2 Control Solenoid - A/T
84  2Nd To 3Rd Gear Blockout Relay - M/T
85  TCC Stuck On
90  TCC Solenoid Circuit
91  1-4 Upshift Light
97  VSS Output Circuit
99  Tach Output Circuit
(1) Display of a 12 is normal when reference pulses are not being received by control module (engine not running).
DIAGNOSTIC TROUBLE CODE (DTC) CONVERSION (1)

New DTC Old DTC Circuit
P0116  New ECT Sensor Circuit Range/Performance Problem
P0117  15 Coolant Temp. Sensor High Temperature Indicated
P0118  14 Coolant Temp. Sensor Low Temperature Indicated
P0131  44 Bank 1 O2 Sensor No. 1 Low Voltage Signal (Lean)
P0132  45 Bank 1 O2 Sensor No. 1 High Signal Voltage (Rich)
P0133  New Bank 1 HO2S No. 1 Circuit Slow Response
P0134  13 Bank 1 Oxygen Sensor No. 1 No Activity Detected
P0135  New Bank 1 Oxygen Sensor No. 1 Heater Ckt Malfunction
P0151  44 Bank 2 O2 Sensor No. 1 Low Signal Voltage (Lean)
P0152  45 Bank 2 O2 Sensor No. 1 High Signal Voltage (Rich)
P0153  New Bank 2 Oxygen Sensor No. 1 Slow Response
P0154  13 Bank 2 Oxygen Sensor No. 1 No Activity Detected
P0155  New Bank 2 O2 Sensor No. 1 Heater Circuit Malfunction
P0158  45 Bank 2 O2 Sensor No. 2 High Signal Voltage (Rich)
P0160  13 Bank 2 Oxygen Sensor No. 2 No Activity Detected
P0161  New Bank 2 O2 Sensor No. 2 Heater Circuit Malfunction
P0171  New Bank 1 Fuel Trim System Too Lean
P0172  New Bank 1 Fuel Trim System Too Rich
P0174  New Bank 2 Fuel Trim System Too Lean
P0175  New Bank 2 Fuel Trim System Too Rich
P0420  New Catalyst Sys, Low O2 Storage Capacity Indicated
P1114  New Engine Coolant Temp Intermittent Low Input Vltge
P1115  New Engine Coolant Temp Intermittent High Input Vltge
P1133  New Bank 1 Oxygen Sensor No. 1 Not Enough Switches
P1153  New Bank 2 Oxygen Sensor No. 1 Not Enough Switches
P1158  New Bank 2 Oxygen Sensor No. 2 Shifted Rich
(1) All P0 and P1 codes are located at the end of the pre-existing code charts.
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