TROUBLESHOOTING GUIDE - 34 A/C DOES NOT WORK
F-73spec table34 A/C DOES NOT WORK
DESCRIPTION: • Blower fan operates but cool air not expelled
NOTE
[TROUBLESHOOTING HINTS] • Open or short circuit in wiring harness • A/C relay malfunction • A/C switch malfunction • Magnetic clutch malfunction • ECU malfunction
Troubleshooting steps - A/C does not work
1
INSPECTIONGround (L/B) wire at A/C relay with jumper wire and check if condenser fan operates when ignition switch turned ON [See fig1]
ResultYes
ACTIONGo to next step
1
INSPECTION
ResultNo
ACTIONGo to A/C system Troubleshooting (page U-4)
2
INSPECTIONGround (L/B) wire at ECU with jumper wire and check if condenser fan operates when ignition switch turned ON [See fig2]
ResultYes
ACTIONGo to next step
2
INSPECTION
ResultNo
ACTIONRepair (L/B) wire between ECU and A/C relay (page F-7)
3
INSPECTIONCheck if A/C switch is OK (page U-25)
ResultYes
ACTIONTry known good ECU (page F-127)
3
INSPECTION
ResultNo
ACTIONCheck A/C switch and wiring (page U-25)