Diagnostic Aids
- A wide open throttle (WOT) acceleration from a stop should cause the MAF sensor parameter on the scan tool to increase rapidly. This increase should be from 4-10 g/s at idle to 210 g/s or more at the time of the 1-2 shift.
- A high resistance of 15 ohms or more on the 12-volt reference circuit may cause this DTC to set. A high resistance will cause a driveability concern before this DTC sets.
- A high resistance of 10 ohms or more on the ground circuit may cause this DTC to set. A high resistance will cause a driveability concern before this DTC sets.
- A short between the MAF sensor 12-volt reference circuit and the IAT signal circuit will produce a stalling condition that becomes a Crank/No Start condition.
- If the condition is intermittent, refer to Inducing Intermittent Fault Conditions in Wiring Systems and Intermittent Conditions .