TROUBLE DIAGNOSES — Preliminary Check 1: For L.H.D. model only (Intake door is set at "FRESH" in DEF or F/D mode)
HA-60flowchartDiagnostic Procedure 3 lives at HA-74.
Preliminary Check
PRELIMINARY CHECK 1: FOR L.H.D. MODEL ONLY
Intake door is set at "FRESH" in DEF or F/D mode.
Preliminary Check 1 — intake door FRESH/REC behavior (L.H.D. only)
1
Is intake door in "Fresh" position when REC switch is turned from ON to OFF at VENT, B/L or FOOT mode with ignition switch at ACC and fan speed at 4? (Can you hear air moving from the intake unit?)
No
Go to Diagnostic Procedure 3.
Yes
2
Is intake door in "REC" position when REC switch is turned from OFF to ON at VENT, B/L or FOOT mode with ignition switch at ACC and fan speed at 4? (Can you hear air moving from the intake unit?)
No
same as step 1
Yes
3
Is intake door in "Fresh" position when F/D switch or DEF switch is pushed? (Can you hear air moving from the intake unit?)
No
Replace control amp. built-in push control unit.
Yes
INSPECTION END