P0108
(P0108) MAP SENSOR CIRCUIT HIGH
When Monitored and Set Condition
^ When Monitored: Engine running for at least 30 seconds and no fault in the throttle valve actuator.
^ Set Condition: Low limit: The Manifold Absolute Pressure (MAP) Sensor reading is 0 mbar (0 in. Hg) when the throttle valve angle is greater than 80° for approximately 5 seconds. High limit: The MAP Sensor reading is greater than a calculated value that is determined by engine speed and throttle valve angle for approximately 5 seconds.
POSSIBLE CAUSES
- MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT OPEN
- MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO GROUND
- MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
- 5 VOLT SUPPLY CIRCUIT OPEN
- 5 VOLT SUPPLY CIRCUIT SHORT TO GROUND
- 5 VOLT SUPPLY CIRCUIT SHORT TO VOLTAGE
- MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO SENSOR GROUND CIRCUIT
- MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO 5 VOLT SUPPLY CIRCUIT
- SENSOR GROUND CIRCUIT OPEN
- ENGINE OIL SENSOR
- MANIFOLD ABSOLUTE PRESSURE SENSOR
- POWERTRAIN CONTROL MODULE
Diagnostic Test
1. CHECK FOR CURRENT DTC
Turn the ignition on. With the DRBIII, read PCM DTCs.
Is this DTC present?
Yes >> For complete diagnosis of this DTC, refer to (P0106) MAP SENSOR PERFORMANCE. P0106
No >> Go To 2
2. INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.
Note: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits.
Note: Check for any Technical Service Bulletins that may apply.
Were there any problems found?
Yes >> Repair as necessary. Perform POWERTRAIN VERIFICATION TEST - VER 2 Powertrain Verification Test - Ver 2.
No >> The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.