Test I

PINPOINT TEST I: INCORRECT VOLTAGE GAUGE INDICATION

Test I1-I3:

Normal Operation
The instrument cluster uses voltage supplied on circuit 3049 (BK/LG) to determine the voltage gauge pointer position. The instrument cluster will set DTC B1317 if the battery voltage, when in the START/RUN position, exceeds 16.5 volts DC ± 0.5 volts DC. The instrument cluster will set DTC B1318 if battery voltage, when in the START/RUN position, drops below 9 volts DC ± 0.5 volts DC.

Possible Causes
- circuit 3049 (BK/LG) open or short to ground
- generator
- powertrain control module
- instrument cluster