Suzuki Wagon R Manual page 3764

Test
T04 Check: Short to Ground of Signal Circuit
• Ignition OFF
• Disconnect wiring harness connector from:
ECM (Wiring Harness Connector G21)
• Ignition ON
• Measure voltage between the following terminals:
A/C switch - Wiring harness connector (wiring harness side) termi-
nal G31-4
&
Ground
Yes: T05
T05 Check: Circuit Interruption of Ground Circuit
• Ignition OFF
• Measure resistance between the following terminals:
A/C switch - Wiring harness connector (control module side) termi-
nal G31-1
&
Ground
Yes: E01
Result Table
Result
E01 • Defective component:
A/C switch
or
Blower fan relay
E02 • Circuit interruption between:
A/C switch - Wiring harness connector (wiring harness side) terminal G31-1
&
Ground
E03 • Short circuit to voltage between:
ECM - Wiring harness connector (wiring harness side) terminal G21-40
&
Blower fan relay - Socket terminal G52-5 (Z10XEP) or G52-1-5 (Z12XEP)
&
A/C switch - Wiring harness connector (wiring harness side) terminal G31-4
E04 • Circuit interruption between:
ECM - Wiring harness connector (wiring harness side) terminal G21-40
&
A/C switch - Wiring harness connector (wiring harness side) terminal G31-4
or
• Defective component:
ECM
NOTE:
If ECM is replaced, register password (PWD) and secret key code (SKC) to ECM referring to
"Procedure after ECM Replacement" in Section 8G3.
ENGINE GENERAL INFORMATION AND DIAGNOSIS (Z10XEP AND Z12XEP ENGINES) 6-4-83
Work Order Description
Cause Of Fault
Nominal Value
less than 0.3 V
No: E03
less than 5 Ω
No: E02