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Home >> Lexus >> 2006 >> RX 400h AWD >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (P310) - RX400H - DTC P0AEE-276 Through U0110-160 >> DTC P3187-751 Short to GND in Rear Guard Sensor 1 Connection; DTC P3188-752 Open or Short to B+ in Rear Guard Sensor 1 Connection >> Description

DTC P3187-751 Short to GND in Rear Guard Sensor 1 Connection; DTC P3188-752 Open or Short to B+ in Rear Guard Sensor 1 Connection: Description

The HV control ECU monitors the connection status of the circuit breaker sensor RR RH signal (collision signal) line. If the ECU detects a malfunction, it will alert the driver.

DTC DETECTION CONDITION - TROUBLE AREA CHART

DTC No. INF Code DTC Detection Condition Trouble Area
P3187 751 GND short in rear circuit breaker sensor (RH) circuit
  • Wire harness or connector
  • Rear circuit breaker sensor RH
  • HV control ECU
P3188 752 Open or +B short in circuit breaker sensor (RH) circuit
  • Wire harness or connector
  • Rear circuit breaker sensor RH
  • HV control ECU