1, 2 and 3 Digit Codes: 146

Scan Tool 146 (MIL 14):

Trouble Code Number
- Scan tool 146
- General scan tool P1496
- MIL 71

Fault Message
- 5 Volts Supply Output Low

Background
- The PCM supplies a regulated 5-volts to the TPS, MAP sensor.
- This DTC is set when both the TPS and MAP sensors have the sense circuit indicating too low of voltage.

Range of Check
- Ignition switch: ON

Set Condition
- 5-volts feed circuit drops below 4 volts for over four seconds.

Probable Cause
- 5-volts supply circuit shorted to ground
- PCM failed