Resistance Check - Suzuki Grand Vitara XL-7 Service Manual

TERMINAL
G08-1 Coil antenna +
G08-2
G08-3 Coil antenna –
Serial data line between ECM and
G09-1
immobilizer control module
G09-2
G09-3 Power supply
G09-4 GND
Serial data line between Suzuki
G09-5 scan tool and immobilizer control
module
Serial data line between ECM and
G09-6
immobilizer control module
G09-7 Power control of ECM
G09 8 G09-8 Ignition signal Ignition signal
NOTE:
When measuring voltage at G08-1 and G08-3 terminals with ignition switch turned ON, be sure to turn igni-
tion switch ON before connecting positive probe of voltmeter to G08-1 or G08-3 terminal. If it is not turned
ON first, DTC13 (Diagnostic Trouble Code 13) may be indicated.
1. Immobilizer Control Module coupler disconnected
2. Ohmmeter
TERMINAL
G08-1 – G08-3 Coil antenna
CIRCUIT
–
–

Resistance Check

1) Disconnect Immobilizer Control Module couplers from Immobi-
lizer Control Module with ignition switch OFF.
CAUTION:
Do not touch terminals of Immobilizer Control Module it-
self or connect voltmeter or ohmmeter.
2) Check resistance between each terminal of couplers discon-
nected.
CAUTION:
D Be sure to connect ohmmeter probe from wire harness
D Be sure to turn OFF ignition switch for this check.
D Resistance in table below represents that when parts
CIRCUIT
IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED) 8G-17
NORMAL
VOLTAGE
0 V Ignition switch ON
–
0 V Ignition switch ON
10 – 14 V Ignition switch ON and OFF
–
10 – 14 V Ignition switch ON and OFF
–
4 – 5 V Ignition switch ON and OFF
10 – 14 V Ignition switch ON and OFF
0 V Ignition switch ON and OFF
0 V Ignition switch OFF
10 – 14 V Ignition switch ON
side of coupler.
temperature is 20_C (68_F).
NORMAL
RESISTANCE
Continuity
CONDITION
–
–
–
CONDITION
–