Dtc P0381 Glow Indicator Lamp Circuit Malfunction - Suzuki Grand Vitara XL-7 Service Manual

DTC P0381 GLOW INDICATOR LAMP CIRCUIT MALFUNCTION

WIRING DIAGRAM
DTC CONFIRMATION PROCEDURE
1) Connect scan tool to DLC with ignition switch OFF.
2) Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool.
3) Turn ignition switch ON for 30 sec. after OFF.
4) Check DTC and pending DTC by using scan tool.
TROUBLESHOOTING
STEP
1 Was "ENGINE DIAG. FLOW TABLE" performed?
2 Check Wire Harness
<Not Using Suzuki Scan Tool>
1) Disconnect connector at ECM with ignition switch
OFF.
2) Supply battery power (12 V) to E227-14 using
service wire.
Dose glow indicator lamp turn on?
<Using Suzuki Scan Tool>
1) Connect Suzuki scan tool to DLC.
2) Execute "Glow Indicator Lamp" in Misc Test.
Dose glow indicator lamp flash?
REFERENCE:
As soon as ignition is switched on, ECM turns on glow indicator lamp for a period which depends on engine coolant
temp. as shown below.
Engine coolant temp. (_C)
–30
–10
0
18
ENGINE DIAGNOSIS (RHZ ENGINE WITH TRIPLE-CONNECTOR ECM) 6-1-31
ACTION
Time turning on glow indicator lamp (sec.)
20
5
0.5
0
YES
Go to Step 2.
Substitute a known-
good ECM and
recheck.
1. Glow indicator lamp
2. ECM
NO
Go to "ENGINE DIAG.
FLOW TABLE".
D Lamp bulb broken,
D "RED/BLK" wire
open or short or
D Poor E227-14
connection