2004 Holden Commodore (VZ) — Repair Solution

5.7L LS1 (GENIII) 8cyl 16v OHV MPFI Petrol · Control Panel Not Working · HVAC Control System

Holden Commodore (VZ) Control Panel Not Working HVAC Control System Diagnostic Sequence Available

Vehicle Details

Make: Holden
Model: Commodore (VZ)
Year: 2004
Engine: 5.7L LS1 (GENIII) 8cyl 16v OHV MPFI Petrol
Area: HVAC Control System
Category: Control Panel Not Working

Customer Complaint

A/C system had inefficient cooling.

Problem Summary

Confirmed that this A/C system only appeared to be cooling at maximum cold setting on both sides (dual zone system).

Traced fault to an open circuit ambient temp sensor causing incorrect blend door movements.

Diagnostic Sequence

The step-by-step diagnostic process used to identify this fault is available to TaT members.

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Fault Description

The detailed fault description and root cause analysis for this 2004 Holden Commodore (VZ) is available to TaT members.

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Verified Repair Solution

The confirmed repair procedure for this 2004 Holden Commodore (VZ) is available to TaT members. Includes the verified fix and technician tips.

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Quick Facts

CodeHOLVZ04623
Vehicle2004 Holden Commodore (VZ)
Engine5.7L LS1 (GENIII) 8cyl 16v OHV MPFI Petrol
ComplaintVisible
Diag. SequenceMembers Only
SolutionMembers Only

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