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Home / DTC / B1494 — F ABG(2)PS active circuit short

B1494 — F ABG(2)PS active circuit short

Detailed page for trouble code B1494.

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Code

B1494

MITSUBISHI B — Body

F ABG(2)PS active circuit short

Brand: MITSUBISHI
Type: B — Body
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Page language: EN

Causes

  • Short to battery (power) on the ABG(2)PS wiring
  • Short to ground on the ABG(2)PS wiring
  • Damaged, pinched or chafed harness or connector insulation
  • Corroded or loose connector terminals at the component or control module
  • Failed/shorted actuator, sensor or solenoid on the ABG(2)PS circuit
  • Faulty control module (less common)

Symptoms

  • Related system warning lamp illuminated (system-dependent)
  • Loss or restriction of the affected function (actuator/pressure control may be disabled)
  • Stored B1494 DTC and possibly related codes
  • Intermittent operation if wiring is damaged or connectors are corroded

What to check

  • Read and record stored codes and freeze-frame data with a compatible scanner
  • Check for additional related DTCs that may point to harness or module faults
  • Visually inspect wiring and connectors for damage, chafing, corrosion, heat damage, or water intrusion at the component and control module
  • Check relevant fuses and relays for continuity and proper seating
  • With ignition off and battery disconnected, measure resistance between the ABG(2)PS circuit pin and battery positive and ground to check for short conditions
  • Backprobe connector with ignition on (or as specified by manufacturer) to measure supply and control voltages while operating (observe safety and manufacturer's procedures)

Signal parameters

  • Supply voltage expected: ~11–14 V (vehicle battery voltage) on power feed when circuit is powered
  • Short condition: very low resistance to battery positive or ground (near 0 Ω) vs normal open or specified resistance — consult wiring diagram for exact values
  • When active, control signals may be PWM or on/off; duty cycle/voltage varies by component — compare to manufacturer specifications
  • No-voltage (open) or near-zero-ohm (short) are the two abnormal states to detect

Diagnostic algorithm

  1. Retrieve full DTC list and freeze-frame data with a diagnostic tool and note any related codes
  2. Clear codes and attempt to recreate the fault to confirm it is current
  3. Perform a careful visual inspection of the ABG(2)PS component, its connector, and wiring to the control module; look for physical damage, corrosion, or contamination
  4. Check fuses/relays associated with the circuit; replace if faulty
  5. Disconnect the ABG(2)PS connector and measure resistance between the circuit pin and ground and between the pin and battery positive (ignition off, battery disconnected). A near-zero reading indicates a short; a very high/open reading may indicate an open circuit instead
  6. If a short is present, isolate sections of the harness by disconnecting connectors down the line until the short clears; this locates the damaged section
  7. If no short is found in wiring, bench-test or substitute the ABG(2)PS component (if serviceable) to verify whether the component is internally shorted
  8. If wiring and component check good, inspect/replace or repair the control module connector and consider module testing or replacement only after wiring and component elimination
  9. After repair, clear codes and perform functional test and road test as required to confirm the fault is resolved

Likely causes

  • Damaged or chafed wiring causing short to ground or battery
  • Corroded/poor connector contact at ABG(2)PS or main harness connector
  • Failed component on the ABG(2)PS circuit (internal short)
  • Loose or blown fuse/failed relay associated with the circuit
  • Control module internal fault (verify after wiring and component checks)

Fault status

⚠️ Status
Active-circuit short detected on ABG(2)PS circuit — short to power or ground, damaged wiring/connector, or internal component fault. Related function may be disabled until repaired.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5–2.0 hours

Similar codes

B1490 B1491 B1492 B1493 B1495
406

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