Dtc B1713: Immobilizer Code Error; Dtc B1714: Unregistered Code - Suzuki GRAND VITARA 2005 Service Manual

10C-17 Immobilizer Control System:

DTC B1713: Immobilizer Code Error

Detecting Condition and Trouble Area
Detecting Condition
Verification error between ICM and ECM
NOTE
Troubleshoot DTC B1704 first if both B1704 and B1713 are detected at the same time.
Troubleshooting
Step
1 Diagnostic Trouble Code (DTC) check
1) Check ECM for DTC referring to "DTC Check: in
Section 1A".
2) Check ABS control module or ESP
DTC. For vehicle equipped with ESP
"DTC Check: in Section 4F". For vehicle not equipped
®
with ESP system, refer to "DTC Check: in Section 4E".
3) Check BCM for DTC referring to "DTC Check: in
Section 10B in related manual".
Is any DTC(s) detected?
2 ICM connector check
1) With the ignition key at OFF position, disconnect ICM
connector.
2) Check for proper connection at terminals and wires of
ICM connector. Refer to "Intermittent and Poor
Connection Inspection: in Section 00 in related manual".
Is each terminal and wire connection normal?
3 ECM connector check
1) With the ignition key at OFF position, disconnect ECM
connectors.
2) Check for proper connection at terminals and wires of
ECM connector. Refer to "Intermittent and Poor
Connection Inspection: in Section 00 in related manual".
Is each terminal and wire connection normal?
4 ICM power and ground circuit check
1) Check power and ground circuit of ICM referring to
"Inspection of Immobilizer Control Module (ICM) and Its
Circuit: ".
Is power and ground circuit of ICM normal?

DTC B1714: Unregistered Code

Detecting Condition and Trouble Area
ECM have never been registered with immobilizer control system
Troubleshooting
ECM does not registered with immobilizer control system. Perform "Procedure after ECM Replacement: ".
Action
®
control module for
®
system, refer to
Detecting Condition
Trouble Area
• ICM faulty
• ECM faulty
Yes
Go to applicable DTC
diag. flow.
Go to Step 3.
Go to Step 4.
Substitute a known-
good ICM and recheck.
If DTC B1702 is still
detected, substitute a
known-good ECM and
recheck.
S5JB0BA304029
No
Go to Step 2.
Repair poor
connection(s).
Repair poor
connection(s).
Repair power and
ground circuit.
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