B4000 SE Cab Plus 4WD V6-4.0L OHV (1997)
Step 3
Check battery ground.
1. Remove GEM 26-pin and 18-pin connectors.
2. Check for loose or backed-out terminals.
3. Check for continuity between pins 14 and 26 at 26-pin connector or pin 18 at 18-pin connector and a known - ground.
4. Is continuity present?
Step 4
Check for open power circuit.
1. Check for open power circuit W/Y between 18-pin connector, pin 5 (W/Y) or pin 11 (W/Y) and instrument panel fuse #25.
2. Does circuit check OK?
Flow Chart No. 3
Flow Chart No.3 - Symptom - Door ajar warning lamp stays on.
Step 1
Preliminary checks.
1. Check connections for clean, tight fit.
2. Check for loose or damaged wires.
3. Do connections and wiring check OK?
Step 2
On-demand self test.
