SELF-DIAGNOSIS FUNCTION
F-81flowchartTroubleshooting
If a malfunction code number is shown on the SST, check for the cause by using the chart related to the code number shown.
CODE NO.01 IGf-SIGNAL
1
Are there any poor connections at ignition coil connectors and igniter connectors?
Yes
Repair or replace connector
No
2
Does tachometer operates?
No
Check for open circuit in wiring from igniter to ECU terminal 2I
Yes
3
Is resistance of ignition coil OK? Resistance: Primary 0.78–0.94 Ω; Secondary 11.2–15.2 kΩ
No
Replace ignition coil (Refer to page G-21)
Yes
4
Is there continuity between ignition coil and igniter? Ignition coil A(W)–Igniter A(W); Ignition coil B(Y)–Igniter H(Y)
No
Check for open circuit in wiring from ignition coil to igniter
Yes
5
Is ignition coil terminal-wire (L) voltage OK? (Refer to page G-21)
No
Check for open circuit in wiring from ignition coil to ignition switch
Yes
6
Is igniter terminal-wire (L) voltage OK? (Refer to page G-22)
No
Check for open circuit in wiring from igniter to ignition switch
Yes
7
Is there continuity between igniter and ground?
No
Check for open circuit in wiring from igniter to ground
Yes
8
Check igniter (Refer to page G-22)
No
Replace igniter (Refer to page G-22)
Yes
9
Replace ECU (Refer to page F-127)
Circuit Diagram
CODE NO.01 IGf-SIGNAL Circuit Diagram
Components (8)
Ignition switchIgnition coil (No.1–No.4)TachometerDiagnosis connector terminal (IG)CondenserIgniterECUground
Connections (9)
Ignition switch
Ignition switchIgnition coil (No.1–No.4)Blue (F)
Ignition coil (No.1–No.4)
Ignition coil (No.1–No.4)TachometerWhite (F)
Ignition coil (No.1–No.4)Diagnosis connector terminal (IG)Yellow with Blue stripe (F)
Ignition coil (No.1–No.4)CondenserYellow (F)
Condenser
CondenserIgniterGray (F)
Igniter
IgniterECU:1QBrown with Yellow stripe (F)
IgniterECU:2IBlack with White stripe (F)
IgniterECU:1TBrown (F)
IgnitergroundBlack (F)