C1223high severityChassis
ABS System Malfunction
on 2006 Lexus GS 430 4.3L V8 · RWD
What this code means
The ABS ECU has detected an internal fault or general failure within the ABS system. No direct OBD P-code equivalent for this chassis code.
Symptoms
- ABS warning light on
- No anti-lock function
- Longer stopping distances
Common causes
- Faulty ABS ECU/actuator
- Wheel speed sensor fault
- Low system voltage
- Wiring or connector fault
Diagnostic steps
- Scan for related ABS sub-codes
- Check system voltage and grounds
- Inspect wheel speed sensor signals
- Replace ABS actuator/ECU if internal fault
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
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Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0026
RF Wheel Speed Sensor Circuit Intermittent
C0027
LR Wheel Speed Sensor Circuit Intermittent
C0028
RR Wheel Speed Sensor Circuit Intermittent
C0035
Left Front Wheel Speed Sensor Circuit
C0036
Left Front Wheel Speed Signal Erratic