P0103

M : DTC P0103. MASS AIR FLOW SENSOR (MAF)

G92429t79 : CHECK THE MAF SENSOR POWER SUPPLY
1. Turn the ignition switch to the OFF position.
2. Disconnect the MAF sensor electrical connector ENS.
3. Turn the ignition switch to the ON position.
4. Measure the voltage between the MAF sensor electrical connector ENS pin 1 (GU) and GROUND.

- Is the voltage less than 10 volts?

-> Yes

-> No

G92429t80 : CHECK CONTINUITY OF THE MAF SENSOR GROUND CIRCUIT
1. Turn the ignition switch to the OFF position.
2. Disconnect the ECM electrical connector EN16.
3. Measure the resistance between the MAF sensor electrical connector ENS pin 3 (GW) and the ECM electrical connector EN16 pin 44 (GW).

- Is the resistance less than 5 ohms?

-> Yes

-> No
REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.

G92429t81 : CHECK CONTINUITY OF THE MAF SENSOR GROUND CIRCUIT
1. Measure the resistance between the MAF sensor electrical connector ENS pin 2 (BW) and the ECM electrical connector EN16 pin 45 and pin 46 (BW).

- Is the resistance less than 5 ohms?

-> Yes

-> No
REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.

G92429t82 : CHECK THE MAF SENSOR CIRCUIT FOR SHORT TO GROUND
1. Measure the resistance between the MAF sensor electrical connector EN6 pin 3 (GW) and GROUND.

- Is the resistance greater than 10,000 ohms?

-> Yes
INSTALL a new MAF sensor. CLEAR DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. Before replacing an ECM, contact dealer technical support.

-> No
REPAIR the short to ground. CLEAR the DTCs. TEST the system for normal operation.

G92429t116 : CHECK FUSE 36 OF THE ENGINE COMPARTMENT FUSE BOX
1. Check the fuse.

- Is the fuse OK?

-> Yes

-> No

G92429t174 : CHECK FUSE 36 OF THE ENGINE COMPARTMENT FUSE BOX FORA SHORT TO GROUND
1. Measure the resistance between electrical connector JB34 pin 93 of the engine compartment fuse box and GROUND.

- Is the resistance less than 10,000 ohms?

-> Yes
REPAIR short to ground between the engine compartment fuse box and the MAF sensor. CLEAR the DTC. TEST the system for normal operation.

-> No
INSTALL a new fuse. Check the circuit for cause of fuse failure. CLEAR the DTC. TEST the system for normal operation.

G92429t175 : CHECK THE POWER SUPPLY FROM FUSE 36 IN THE ENGINE COMPARTMENT FUSE BOX TO THE MAF SENSOR
1. Measure the voltage between the engine compartment fuse box electrical connector JB34 pin 93 and GROUND.

- Is the voltage less than 10 volts?

-> Yes
Repair the circuit from the engine compartment fuse box to the MAF sensor. CLEAR the DTC. TEST the system for normal operation.

-> No
Recheck DTCs.