B1923

Code

Other B — Body

Air Bag Memory Clear Circuit Short To Ground

Brand: Other

Type: B — Body

Views: UK: 23 EN: 38 RU: 32

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Page language: EN

Damaged or pinched wiring harness (insulation worn through) on the memory clear circuit
Corroded, bent, or pushed-back connector terminal contacting ground
Accessory or aftermarket equipment improperly connected to SRS harness
Short inside SRS/airbag control module
Water intrusion or contamination in connector or harness

Record freeze frame and full SRS code list with a scan tool before clearing codes
Visually inspect SRS wiring harnesses, connectors, and grounding points for damage or corrosion
Inspect connectors at the SRS control module and any intermediate junctions
With battery disconnected and capacitor wait time observed, perform continuity check between memory clear circuit and chassis ground
Backprobe the circuit with ignition ON (follow safety procedures) to measure voltage and confirm short condition
Check for aftermarket accessories tied into wiring near SRS components

Expected: memory-clear circuit not connected to ground when idle (open/high resistance); short to ground = near 0 ohms continuity to chassis ground
Voltage (when commanded) will vary by manufacturer; an unexpected near-0 V or battery voltage present on the memory-clear terminal can indicate fault—use manufacturer data if available
Resistance: continuity to ground below a few ohms indicates a short; open or very high resistance indicates no short

Safety first: disconnect battery negative and wait the manufacturer-specified time before probing SRS connectors
Retrieve and record SRS codes and freeze frame data; then attempt to clear codes to confirm persistence
Perform a careful visual inspection of harnesses and connectors along the wiring run for the memory clear circuit (steer column, under dash, impact sensors, fuse box areas)
With battery disconnected and allowed to discharge, disconnect the SRS module connector and check continuity between the memory-clear pin and chassis ground. A direct short indicates harness/connector short; no continuity points toward internal module fault
If continuity to ground is present with module disconnected, isolate by unplugging intermediate connectors and repeat continuity checks to narrow short location
If no short is found in harness, reconnect module and, following manufacturer procedures, perform voltage/current checks on the circuit with scan tool commands while observing safety precautions
Repair damaged wiring (splice with proper crimps, solder and seal, or replace harness section) or clean/replace connectors as required
If harness and connectors test good and fault persists, consider replacement or repair of the SRS control module per manufacturer guidance
After repairs, reconnect battery, clear codes with scan tool, confirm SRS light extinguishes and re-run system tests; check for recurrence