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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 138 (Hybrid Control System - Diagnostic Codes (6 Of 7)) >> HYBRID CONTROL SYSTEM (for PHEV Model) >> DTC P2600-9E: Motor/Generator Coolant Pump "A" Control Circuit Stuck On [08/2023 - ] >> Description

DTC P2600-9E: Motor/Generator Coolant Pump "A" Control Circuit Stuck On [08/2023 - ]: Description

WARNING: This page is about a different car, the 2025 Lexus RX 450h+ and 2024 Lexus RX 450h+. However, it is still accessible from the selected car via links, so may be relevant.

Refer to the description for DTC P2600-31.

Refer to DESCRIPTION 

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate DTC Output from Priority Note
P2600-9E Motor/Generator Coolant Pump "A" Control Circuit Stuck On When the OIL PMP relay is off, the NOPM input pulse signal is received.
(1 trip detection logic)
  • OIL PMP relay
  • Hybrid vehicle control ECU
  • Wire harness or connector
Does not come on Master Warning:
Comes on
Hybrid Control A SAE Code: P261F

HINT: 

The oil pump with motor assembly cannot be activated only with the OIL PMP relay on. It is activated after receiving the command signals (OPM1) from the hybrid vehicle control ECU.