Check Battery Current
electrical
Description
With all circuits off, 12 VDC current flow is above +1.5 to -2.0 amps, and pretrip will fail and show “PRETRIP FAIL AND COMPLETED”.
Activation Conditions
With all circuits off, current flow of more than +1.5 to -2.0 amps is detected in the 12 VDC electrical circuits. NOTE: If this alarm occurs, Pretrip Test #2 will be skipped and Pretrip Test #3 will start.
Unit Behavior
Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COMPLETED”.
Reset Conditions
Auto reset if Pretrip is started again, or alarm may be manually reset using the display mounted keys or by turning the unit off, then back on again.
Corrective Actions
1. Check DC Current Draw and Sensor a. Observe current draw reading in unit data. Reading must be between +1.5 to -2.0 Amps. b. Check power between 2MM-29 and 2MM-23 and between PCM-31 and PCM-30 5 VDC. If not, check connectors and wiring between terminals for damage, moisture or corrosion. c. Check for continuity from 2MM-12 to PCM-29. If good continuity not present, check connectors and wiring between terminals for damage, moisture or corrosion. 2. Check Individual Circuits - Isolate individual circuits and test amp draw. Must be in range. (Refer to Section 2.11 for correct electrical values.) 3. Check for Parasitic Loads - Check for electrical loads that are drawing current with all circuits OFF Check for non-factory installed devices such as lift gates, inside lights, satellite systems, etc. These devices must be wired so as to not draw current during Pretrip testing.