DTC P0102: MAF Sensor Circuit Low Input

1. Turn the ignition switch ON (II).

1. Check the MAF SENSOR in the DATA LIST with the HDS.

Is about 0 gm/s or 0.29 V or less indicated?

YES | - | Go to Step 3 .
NO | - | Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the MAF sensor and the ECM.■

1. Check No. 18 ACG (15 A) fuse in the under-dash fuse/relay box.

Is the fuse OK?

YES | - | Go to Step 4 .
NO | - | Repair short in the wire between the MAF sensor and No. 18 ACG (15 A) fuse, replace the fuse, then go to Step 23 .

1. Turn the ignition switch OFF.

1. Disconnect the MAF/IAT sensor 5P connector.

1. Turn the ignition switch ON (II).

1. Measure voltage between MAF/IAT sensor 5P connector terminal No. 4 and body ground.

Is there battery voltage?

YES | - | Go to Step 8 .
NO | - | Repair open in the wire between No. 18 ACG (15 A) fuse and the MAF/IAT sensor, then go to Step 23 .