Network, generic

U0465 Invalid Data Received From PTO Control Module

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

U0465 flags implausible data from the power take-off (PTO) controller. That unit switches in an engine-driven output for dump beds, aerial lifts or pumps and asks the engine for a working speed. The engine or body controller logs it when PTO state or speed requests arrive corrupted or contradictory. GM uses the code: Saab's U-code tables for the 2011 9-5 and 9-4X, which follow GM's global architecture, list U0465 00 for invalid data from the PTO module, without timing or lamp rules. CARB lets the engine controller suspend monitor counters while a PTO runs, so a trusted PTO status matters for OBD bookkeeping. Caution: a Ram 1500 STAR case (S1908000041) prints U0465 in its title, but its body names U0645, the active air dam. U0117 is lost contact, P064B a PTO module fault. PTO or set speed drops out; no MIL.

Likely causes

Damaged or corroded wiring and connectors of the body-mounted PTO module
Mismatched configuration after installing or changing the body equipment
Voltage drops while the PTO and hydraulic loads are running
Internal fault in the PTO control module

Symptoms

  • PTO cannot be engaged or disengages on its own
  • Working engine speed for the body equipment is not held
  • PTO warning or message in the cluster

Repair estimate

DifficultyHardWorkshop job
Parts and labour€80–1,200
Time1–4 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

pto module

Related codes

U0117P064BU0645

References: saabwisonline.com, saabwisonline.com, law.cornell.edu, static.nhtsa.gov.