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Engine Controls - 6.0L - Introduction: Diagnosis Pontiac GTO IV

Testing & Diagnostics 20 illustrations ~298 words

Action Taken When the DTC Sets - Type A

The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.

Action Taken When the DTC Sets - Type B

The control module illuminates the MIL on the second consecutive ignition cycle that the diagnostic runs and fails.

Conditions for Clearing the MIL/DTC - Type A or Type B

  1. The control module turns OFF the MIL after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
  2. A current DTC Last Test Failed clears when the diagnostic runs and passes.
  3. Use a scan tool in order to clear the MIL and the DTC.

Action Taken When the DTC Sets - Type C

  1. The control module stores the DTC information into memory when the diagnostic runs and fails.
  2. The MIL will not illuminate.
  3. The driver information center, if equipped, may display a message.

Conditions for Clearing the DTC - Type C

  1. A last test failed, or current DTC, clears when the diagnostic runs and passes.
  2. Use a scan tool in order to clear the DTC.

Conditions for Clearing the DTC - Type X

This DTC is available in the PCM software, but has been disabled, or turned OFF. In this case, the diagnostic does not run, no DTCs are stored, and the MIL does not illuminate. Type X DTCs are used primarily for export vehicles that do not require MIL illumination or DTC storing.

Diagnostic Trouble Code (DTC) Type(s)

DTC DescriptionDomestic
DTC P0016B
DTC P0030B
DTC P0036B
DTC P0050B
DTC P0056B
DTC P0068A
DTC P0101B
DTC P0102B
DTC P0103B
DTC P0106B
DTC P0107B
DTC P0108B
DTC P0112B
DTC P0113B
DTC P0116B
DTC P0117B
DTC P0118B
DTC P0120A
DTC P0121B
DTC P0122A
DTC P0123A
DTC P0128B
DTC P0131B
DTC P0132B
DTC P0133B
DTC P0134B
DTC P0135B
DTC P0136B
DTC P0137B
DTC P0138B
DTC P0140B
DTC P0141B
DTC P0151B
DTC P0152B
DTC P0153B
DTC P0154B
DTC P0155B
DTC P0156B
DTC P0157B
DTC P0158B
DTC P0160B
DTC P0161B
DTC P0171B
DTC P0172B
DTC P0174B
DTC P0175B
DTC P0201-P0208B
DTC P0220A
DTC P0222A
DTC P0223A
DTC P0230B
DTC P0300B
DTC P0301-P0308B
DTC P0315A
DTC P0325C
DTC P0326C
DTC P0327C
DTC P0332C
DTC P0335B
DTC P0336B
DTC P0340B
DTC P0341B
DTC P0351-P0358B
DTC P0420A
DTC P0430A
DTC P0442A
DTC P0443B
DTC P0446B
DTC P0449B
DTC P0452B
DTC P0453B
DTC P0455B
DTC P0461B
DTC P0462B
DTC P0463B
DTC P0480C
DTC P0481C
DTC P0496B
DTC P0502B
DTC P0503B
DTC P0506B
DTC P0507B
DTC P0513C
DTC P0522C
DTC P0523C
DTC P0532C
DTC P0533C
DTC P0562C
DTC P0563C
DTC P0601A
DTC P0602A
DTC P0603A
DTC P0604A
DTC P0606A
DTC P0607C
DTC P0608C
DTC P060DA
DTC P060EA
DTC P0621C
DTC P0622C
DTC P0633C
DTC P0641B
DTC P0645C
DTC P0650B
DTC P0651B
DTC P0654C
DTC P0685C
DTC P0689C
DTC P0690C
DTC P0700A
DTC P0719C
DTC P0724C
DTC P0801C
DTC P0803C
DTC P0833B
DTC P0852C
DTC P1101C
DTC P1133B
DTC P1134B
DTC P1153B
DTC P1154B
DTC P1258A
DTC P1380C
DTC P1381C
DTC P1516A
DTC P1575C
DTC P1621A
DTC P1629C
DTC P1632C
DTC P1648C
DTC P1677C
DTC P1678C
DTC P1679C
DTC P1682A
DTC P2101A
DTC P2119C
DTC P2120A
DTC P2122A
DTC P2123A
DTC P2125A
DTC P2127A
DTC P2128A
DTC P2135A
DTC P2138A
DTC P2176A
DTC P2610A
DTC U0001C
DTC U0101B
DTC U0121C

Diagnostic Trouble Code (DTC) Type(s)

Scheme 34

Scheme 34: Evaporative Emissions (EVAP) Hose Routing Diagram
CalloutComponent Name
1EVAP Canister Purge Solenoid Valve
2EVAP Canister
3Fuel Fill Neck/Fill Cap
4Rollover Valve/Fuel Tank Pressure (FTP) Sensor
5Fuel Tank
6EVAP Canister Vent Solenoid Valve
7Vent Hose/Pipe
8EVAP Vapor Pipe
9EVAP Purge Pipe
10EVAP Service Port

Scheme 35

Scheme 35: Engine Controls Schematics

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Scheme 48

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Scheme 49

Scheme 49: Engine Controls Component Views
CalloutComponent Name
1Fuel Tank Pressure Sensor
2Modular Fuel Pump and Sender Assembly
3Manifold Absolute Pressure Sender Assembly
4Oil Pressure Sensor
5Heated Oxygen Sensor Bank 2
6Ignition Coil Module Bank 2
7Powertrain Interface Module
8EVAP Canister Purge Solenoid
9Engine Coolant Temperature (ECT) Sensor
10Mass Air Flow (MAF) Sensor
11A/C Refridgerant Pressure Sensor
12Intake Air Temperature (IAT) Sensor
13Engine Cooling Fans
14Throttle Position (TP) Sensor
15Idle Air Control (IAC) Valve
16Knock Sensor (KS)
17Crankshaft Position (CKP) Sensor
18Knock Sensor (KS)
19Camshaft Position (CMP) Sensor
20Underhood Fuse Block
21Fuel Injectors
22Ignition Coil Module Bank 1
23Heated Oxygen Sensors Bank 1
24Vehicle Speed Sensor (VSS)
25Evaporative Canister Vent Solenoid

Scheme 50

Scheme 50
CalloutComponent Name
1Throttle Body Assembly
2Fuel Injectors
3Oil Pressure Sensor
4Knock Sensor
5Engine Coolant Temperature Sensor
6Camshaft Position Sensor

Scheme 51

Scheme 51
CalloutComponent Name
1MAP Sensor
2EVAP Canister Purge Valve
3Coil Assembly
4HO2S Sensor Bank 1
5HO2S Sensor Bank 2
6Knack Sensor Bank 2

Scheme 52

Scheme 52
CalloutComponent Name
1Throttle Pedal Assembly

Scheme 53

Scheme 53
CalloutComponent Name
1ECM
2Mass Air Flow Sensor
3A/C Pressure Sensor