Suzuki Wagon R Manual page 3777

6-4-96 ENGINE GENERAL INFORMATION AND DIAGNOSIS (Z10XEP AND Z12XEP ENGINES)
Test
T03 Check: Short to Voltage of Signal Circuit
• Remove fused jumper wire
• Disconnect wiring harness connector from:
ECM (Wiring Harness Connector C36)
&
Radiator fan relay
• Ignition ON
• Measure voltage between the following terminals:
Fuel injector No.1 - Wiring harness connector (wiring harness side)
terminal C09-2
&
Ground
Yes: T04
T04 Check: Short to Ground of Signal Circuit
• Ignition OFF
• Measure resistance between the following terminals:
Fuel injector No.1 - Wiring harness connector (wiring harness side)
terminal C09-2
&
Ground
Yes: E01
Result Table
Result
E01 • Circuit interruption between:
ECM - Wiring harness connector (wiring harness side) terminal C36-18
&
Fuel injector No.1 - Wiring harness connector (wiring harness side) terminal C09-2
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.
E02 • Short circuit to ground between:
ECM - Wiring harness connector (wiring harness side) terminal C36-18
&
Fuel injector No.1 - Wiring harness connector (wiring harness side) terminal C09-2
E03 • Short circuit to voltage between:
ECM - Wiring harness connector (wiring harness side) terminal C36-18
&
Fuel injector No.1 - Wiring harness connector (wiring harness side) terminal C09-2
E04 • Defective component:
Fuel injector No.1
E05 • Circuit interruption between:
Fuel pump relay - Socket terminal E52-3
&
Fuel injector No.1 - Wiring harness connector (wiring harness side) terminal C09-1
Work Order Description
Cause Of Fault
Nominal Value
less than 0.3 V
No: E03
greater than 500 kΩ
No: E02