Page 1397 of 1767
YHA393
TROUBLE DIAGNOSES
Wiring Diagram (Cont'd)
HA-44
Page 1398 of 1767
RHD TD27Ti ENGINE MODELS
YHA394
TROUBLE DIAGNOSES
Wiring Diagram (Cont'd)
HA-45
Page 1399 of 1767
YHA395
TROUBLE DIAGNOSES
Wiring Diagram (Cont'd)
HA-46
Page 1400 of 1767
LHD ZD30DDTi ENGINE MODELS
YHA396
TROUBLE DIAGNOSES
Wiring Diagram (Cont'd)
HA-47
Page 1401 of 1767
YHA397
TROUBLE DIAGNOSES
Wiring Diagram (Cont'd)
HA-48
Page 1402 of 1767
RHD ZD30DDTi ENGINE MODELS
YHA398
TROUBLE DIAGNOSES
Wiring Diagram (Cont'd)
HA-49
Page 1403 of 1767
YHA399
TROUBLE DIAGNOSES
Wiring Diagram (Cont'd)
HA-50
Page 1404 of 1767
Main Power Supply and Ground Circuit Check
POWER SUPPLY CIRCUIT CHECK FOR A/C SYSTEM
Check power supply circuit for air conditioning system.
Refer to ªPOWER SUPPLY ROUTINGº in EL section and ªWir-
ing Diagramº.
THERMO CONTROL AMP. CHECK
Check power supply circuit for thermo control amp. with ignition
switch ON.
1. Disconnect thermo control amp. harness connector.
2. Connect voltmeter from harness side.
3. Measure voltage across terminal No.q
1and body ground.
Voltmeter terminal
Voltage
!@
q
1Body ground Approx. 12V
Check body ground circuit for thermo control amp. with A/C switch
ON and fan switch ON.
1. Disconnect thermo control amp. harness connector.
2. Connect ohmmeter from harness side.
3. Check for continuity between terminal No.q
3and body ground.
Ohmmeter terminal
Continuity
!@
q
3Body ground Yes
YHA406
YHA407
TROUBLE DIAGNOSES
HA-51
