B4000 Regular Cab 4WD V6-4.0L OHV (1997)
2. Is continuity present?
Flow Chart No. 2
Flow Chart No.2 - Symptom - Erratic operation of GEM functions.
Step 1
Preliminary checks.
1. Check engine compartment max fuses A and B.
2. Check connections for clean, tight fit.
3. Check for loose or damaged wires.
4. Are components and wiring OK?
Step 2
On-demand self test.
1. Connect NGS Tester to data link connector (DLC).
2. Select "Diagnostic Test Mode" and "On-Demand Self Test." Retrieve continuous DTCs with ignition switch ON. Note any DTCs.
3. Press Cancel. Select "Retrieve/Clear Continuous DTCs." Perform on-demand self test and note any DTCs.
4. Is self test and continuous DTC B1342 present?