10C-15 Immobilizer Control System:
DTC 21 / 81 (P1623) / 84 (P1620): ECM/
Immobilizer Control Module (ECU) Code Not
Matched
S3RH0AA304011
Description
•
DTC 21
Immobilizer Control Module checks if ECM/
Immobilizer Control Module (ECU) code transmitted
from ECM and that registered in Immobilizer Control
Module match when ignition switch is ON. If they do
not, this DTC is set.
•
DTC 81 (P1623)
ECM checks if ECM/Immobilizer Control Module
(ECU) code transmitted from Immobilizer Control
Module and that registered in ECM match when
ignition switch is ON. If they do not, this DTC is set.
•
DTC 84 (P1620)
ECM checks if ECM/Immobilizer Control Module
(ECU) code transmitted from Immobilizer Control
Module and that registered in ECM match when
ignition switch is ON. If there is no ECM/Immobilizer
Control Module (ECU) code registered in ECM, this
DTC is set.
DTC Troubleshooting
Perform procedure described in “Procedure after ECM
Replacement”.
DTC 82 (P1622): Fault in ECM
S3RH0AA304012
Description
This DTC is set when an internal fault is detected in ECM.
DTC Troubleshooting
NOTE
After replacing with a known-good ECM, register ECM/Immobilizer Control Module (ECU) code in ECM
by performing procedure described in “Procedure after ECM Replacement”.
DTC 22: Ignition Switch Circuit Open/Short
S3RH0AA304013
Wiring Diagram
Description
Immobilizer Control Module monitors ignition signal when the ignition switch is ON. This DTC is set when no ignition
signal input is detected by Immobilizer Control Module.
Step
Action
Yes
No
1
1) Ignition switch OFF.
2) Disconnect connectors from ECM.
3) Check for proper connection to ECM at all terminals.
Are they in good condition?
Substitute a known-
good ECM and recheck.
See NOTE.
Repair or replace.
BLK/WHT
G45-2
5
3
2
1
G45
1
2
2
3
7
4
5
6
I3RH0AA30020-01
1. Battery
5. Immobilizer Control Module
2. Fuse
6. Coil antenna
3. Ignition switch
7. Immobilizer Control Module connector (viewed from harness side)
4. IG fuse (15 A)
Содержание Liana RH413
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Страница 1274: ...9L 14 Paint Coatings Wagon Under Coating Application Areas S3RH0A9C23002 Refer to Under Coating Application Areas...
Страница 1278: ...9M 3 Exterior Trim...
Страница 1300: ...Prepared by 1st Ed Nov 2003 2nd Ed Feb 2007...
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