P0105

: P0105; MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR SENSING CIRCUIT MALFUNCTION, HIGH/LOW VOLTAGE

G258127t152 : CHECK THE MAP SENSOR SENSING CIRCUIT FOR HIGH RESISTANCE
1. Disconnect the battery negative terminal.
2. Disconnect the MAP sensor electrical connector, PI29.
3. Disconnect the ECM electrical connector, PI01.
4. Measure the resistance between PI29, pin 01 (BK) and PI01, pin 127 (BK).

- Is the resistance greater than 5 ohms?

-> Yes
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.

-> No

G258127t153 : CHECK THE MAP SENSOR SENSING CIRCUIT FOR SHORT TO HIGH VOLTAGE
1. Reconnect the battery negative terminal.
2. Measure the voltage between PI29, pin 01 (BK) and GROUND.

- Is the voltage greater than 3 volts?

-> Yes
REPAIR the short to high voltage. CLEAR the DTC. TEST the system for normal operation.

-> No

G258127t154 : CHECK THE MAP SENSOR SENSING CIRCUIT FOR SHORT TO GROUND
1. Measure the resistance between PI29, pin 01 (BK) and GROUND.

- Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short to GROUND. CLEAR the DTC. TEST the system for normal operation.

-> No
INSTALL a new MAP sensor. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, contact dealer technical support for advice on possible ECM failure.