Engine General Information and Diagnosis: 1A-106
Generator Control Signal Circuit Check
S3RH0B1104054
Wiring Diagram
Circuit Description
ECM sends signal (0 – 1 V) to generator terminal C to suspend charging during vehicle take off or fast acceleration.
Troubleshooting
ECM
RED/BLU
12V
C41 (31P)
G04 (24P)
G03 (17P)
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C
C41-12
1
GEN
I2RH0B110090-01
1. Generator
Step
Action
Yes
No
1
Check generator control signal circuit
1) Check voltage at terminal “C41-12” under each condition
given as follows (vehicle at stop).
Voltage at terminal “C41-12”
While engine running: 10 – 14 V
While engine running at 2000 rpm or less and
throttle valve is not totally closed: 0 – 1 V
Is check result satisfactory?
Generator control signal
circuit is in good
condition.
“RED/BLU” wire open or
short. Poor “C41-12”
terminal connection.
If wire and connection
are OK, substitute a
known-good ECM and
recheck.
Summary of Contents for Liana RH418
Page 4: ......
Page 222: ...3A 13 Drive Shaft Axle ...
Page 362: ...5A 136 Automatic Transmission Transaxle ...
Page 370: ...Prepared by 1st Ed Feb 2004 2nd Ed Jul 2006 367 ...
