• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provide an overview of each diagnostic category. |
Circuit | Short to Ground | High Resistance | Open | Short to Voltage | Signal Performance |
---|---|---|---|---|---|
5-Volt Reference | P0107, P0405, P0452, P0462, P0532, P0641 | P0106, P0107 | P0107 | P0108, P0453, P0533, P0641 | P0106, P0107 |
MAP Sensor Signal | P0107 | P0106, P0107 | P0107 | P0108 | P0106, P0107 |
Low Reference | -- | P0106, P0107 | P0106, P0108, P1101 | -- | P0106, P0108 |
Circuit | Short to Ground | Open | Short to Voltage |
---|---|---|---|
Operating Conditions: Engine running, transmission in Park or Neutral Parameter Normal Range: 12-48 kPa (Varies with altitude) | |||
5-Volt Reference | 10 kPa | 10 kPa | 104 kPa |
MAP Sensor Signal | 10 kPa | 10 kPa | 104 kPa |
Low Reference | -- | 80-103 kPa | -- |
The manifold absolute pressure (MAP) sensor has a 5-volt reference circuit, a low reference circuit, and a signal circuit. The powertrain control module (PCM) supplies 5 volts to the MAP sensor on a 5-volt reference circuit and provides a ground on a low reference circuit. The MAP sensor provides a voltage signal to the PCM on a signal circuit relative to the intake manifold pressure changes.
• | DTCs P0068, P0120, P0220, P1516, P2101, P2108, P2120, P2125, P2135, or P2138 are not set |
• | The ignition is ON. |
• | The throttle angle is greater than 0 percent, if the engine speed is less than 1,000 RPM. |
OR |
• | The throttle angle is greater than 10 percent, if the engine speed is greater than 1,000 RPM. |
• | The DTC runs continuously when the above conditions are met. |
• | DTCs P0068, P0120, P0220, P1516, P2101, P2108, P2120, P2125, P2135, or P2138 are not set. |
• | The engine has been running for a length of time that is determined by the startup coolant temperature. The length of time ranges from 5.5 minutes at less than -30°C (-22°F) to 10 seconds at more than +30°C (+86°F). |
• | The throttle angle is less than 2 percent when the engine speed is less than 3,000 RPM. |
OR |
• | The throttle angle is more than 30 percent when the engine speed is greater than 3,000 RPM. |
• | The DTC runs continuously when the above conditions are met. |
• | The control module detects that the MAP sensor voltage is less than 0.1 volt for more than 3 seconds. |
• | This diagnostic runs continuously. |
• | The control module detects that the MAP sensor voltage is more than 4.3 volts for more than 3 seconds. |
• | This diagnostic runs continuously. |
DTCs P0107 and P0108 are Type B DTCs.
DTCs P0107 and P0108 are Type B DTCs.
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
• | J 23738-A Mityvac |
• | J 35555 Metal Mityvac |
Important: All electrical components and accessories must be turned OFF, and allowed to power down.
⇒ | If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the PCM. |
⇒ | If less than the specified range, test the 5-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the PCM. |
⇒ | If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the circuit tests normal, replace the PCM. |
⇒ | If greater than the specified range, test the signal circuit terminal B for a short to voltage. If the circuit tests normal, replace the PCM. |
⇒ | If less than the specified range, test the signal circuit for short to ground or an open/high resistance. If the circuit tests normal, replace the PCM. |
⇒ | If the voltage is not within the specified range or is erratic, replace the MAP sensor. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for PCM replacement, setup, and programming |