Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-34
DTC Troubleshooting
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Driver air bag circuit check
1) With ignition switch turned OFF, disconnect contact coil
connector located under the steering column.
2) Check for proper connection to contact coil at terminal in
“G347” connector.
3) If OK, then connect special tools (A) and (B) to “G347”
connector disconnected in Step 1).
Special tool
(A): 09932–75010
(B): 09932–78340
4) Check SDM for DTC.
With ignition switch turned ON, is DTC B1032 indicated?Go to Step 3. Go to Step 5.
3Driver air bag circuit check
1) Disconnect SDM connector “L04”.
2) Check for proper connection to SDM connector at
terminal “L04-3” and “L04-2”.
3) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
4) Measure resistance between “G347-1” and “G347-2”
terminals.
Is measured resistance infinity?Substitute a known-
good SDM and recheck.Go to Step 4.
BASE OF COLUMNBASE OF COLUMN
“G347”
(A)(B)
DRIVERPASSENGER
I7RW01821018-02
“L04-4” “L04-3”
1,(A)
(A)
I7RW01821019-01
Downloaded from www.Manualslib.com manuals search engine 8B-35 Air Bag System:
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.
DTC B1033: Driver Air Bag Circuit Shorted to GroundS6RW0D8204020
Wiring Diagram
Refer to “DTC B1031: Driver Air Bag Circuit High Resistance”.
DTC Detecting Condition and Trouble Area4Floor harness resistance check
1) Disconnect “L378” connector located near the driver side
front pillar lower trim.
2) Check for proper connection to floor harness connector
at terminal in “L378” connector.
3) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
4) Measure resistance between “L378-1” and “L378-2”
terminals.
Is measured resistance infinity?Repair “GRN/RED”
circuit for short to “GRN”
circuit at instrument
panel harness.Repair “GRN/RED”
circuit for short to “GRN”
circuit at floor harness.
5Contact coil circuit check
1) Check contact coil circuit referring to “Contact Coil Cable
and Its Circuit Check”.
Is contact coil circuit in good condition?Replace driver air bag
(inflator) module
referring to “Driver Air
Bag (Inflator) Module
Removal and
Installation”.Replace contact coil
assembly referring to
“Contact Coil Cable
Assembly Removal and
Installation in Section
6B”. Step Action Yes No
“L04-4” “L04-3”
1,(A)
(A)
I7RW01821019-01
DTC detecting condition Trouble area
Driver air bag circuit has been shorted to ground for more
than 4 sec.• Driver air bag circuit
•SDM
Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-36
DTC Troubleshooting
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Driver air bag circuit check
1) With ignition switch turned OFF, disconnect contact coil
connector “G347” located under the steering column.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to flow harness connector
at terminal in “G347” connector.
4) Check for proper connection to SDM connector at
terminal “L04-3” and “L04-4”.
5) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
6) Measure resistance between “G347-1” terminal and
body ground, and between “G347-2” terminal and body
ground.
Is each measured resistance infinity?Go to Step 4. Go to Step 3.
3Floor harness circuit check
1) Disconnect “L378” connector located near the driver side
front pillar lower trim.
2) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
3) Measure resistance between “L378-1” terminal and body
ground, and between “L378-2” terminal and body
ground.
Is each measured resistance infinity?Repair “GRN/RED”
circuit or “GRN” circuit
for short to ground at
instrument panel
harness.Repair “GRN/RED”
circuit or “GRN” circuit
for short to ground at
floor harness.
“L04-4” “L04-3”
1,(A)
(A)
I7RW01821020-01
“L04-4” “L04-3”
1,(A)
(A)
I7RW01821020-01
Downloaded from www.Manualslib.com manuals search engine 8B-37 Air Bag System:
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.
DTC B1034: Driver Air Bag Circuit Shorted to Power SupplyS6RW0D8204021
Wiring Diagram
Refer to “DTC B1031: Driver Air Bag Circuit High Resistance”.
DTC Detecting Condition and Trouble Area4Contact coil circuit check
1) Connect contact coil connector “G347” located under the
steering column.
2) Remove driver air bag (inflator) module from steering
column referring to “Driver Air Bag (Inflator) Module
Removal and Installation”.
3) Check for proper connection to driver air bag (inflator)
module at terminal in connector (2).
4) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
5) Measure resistance between each terminals of driver air
bag (inflator) module connector (2) and body ground.
Is each measured resistance infinity?Substitute a known-
good SDM and recheck.Replace contact coil
assembly referring to
“Contact Coil Cable
Assembly Removal and
Installation in Section
6B”. Step Action Yes No
“L04-4” “L04-3”
1,(A)
(A)
2
I7RW01821021-01
DTC detecting condition Trouble area
Driver air bag circuit has been shorted to power supply for
more than 4 sec.• Driver air bag circuit
•SDM
Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-38
DTC Troubleshooting
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Driver air bag circuit check
1) With ignition switch turned OFF, disconnect contact coil
connector “G347” located under the steering column.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to contact coil connector at
terminal in “G347” connector.
4) Check for proper connection to SDM connector at
terminal “L04-3” and “L04-4”.
5) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
6) With ignition switch turned ON, measure voltage
between “G347-1” terminal and body ground, and
between “G347-2” terminal and body ground.
Is each measured voltage 0 V?Go to Step 4. Go to Step 3.
3Floor harness circuit check
1) Disconnect “L378” connector located near the driver side
front pillar lower trim.
2) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
3) With ignition switch turned ON, measure voltage
between “L378-1” terminal and body ground, and
between “L378-2” terminal and body ground.
Is each measured voltage 0 V?Repair “GRN/RED”
circuit or “GRN” circuit
for short to power
supply circuit at
instrument panel
harness.Repair “GRN/RED”
circuit or “GRN” circuit
for short to power
supply circuit at floor
harness.
“L04-4” “L04-3”
1,(A)
(A)
I7RW01821022-01
“L04-4” “L04-3”
1,(A)
(A)
I7RW01821022-01
Downloaded from www.Manualslib.com manuals search engine 8B-39 Air Bag System:
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.
4Contact coil circuit check
1) Connect contact coil connector “G347” located under the
steering column.
2) Remove driver air bag (inflator) module from steering
column referring to “Driver Air Bag (Inflator) Module
Removal and Installation”.
3) Check for proper connection to driver air bag (inflator)
module at terminal in connector (2).
4) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
5) With ignition switch turned ON, measure voltage
between each terminals of driver air bag (inflator)
module connector (2) and body ground.
Is each measured voltage 0 V?Substitute a known-
good SDM and recheck.Replace contact coil
assembly referring to
“Contact Coil Cable
Assembly Removal and
Installation in Section
6B”. Step Action Yes No
“L04-4” “L04-3”
1,(A)
2
(A)
I7RW01821023-01
Downloaded from www.Manualslib.com manuals search engine 8B-87 Air Bag System:
Contact Coil Cable and Its Circuit CheckS6RW0D8204050
Troubleshooting
Step Action Yes No
1Driver air bag circuit check
1) Remove driver air bag (inflator) module referring to
“Driver Air Bag (Inflator) Module Removal and
Installation”.
2) With ignition switch turned OFF, disconnect SDM
connector “L04”.
3) Release shorting bar in SDM connector inserting release
tool (1) included in special tool (A).
Special tool
(A): 09932–76010
4) Measure resistance between “L04-3” and “L04-4”
terminals.
Is each measured resistance infinity?Go to Step 2. Check defective wire
harness.
If wire is OK, replace
contact coil.
2Contact coil circuit (driver air bag circuit) check
1) Remove contact coil referring to “Contact Coil Cable
Assembly Removal and Installation in Section 6B”.
2) Measure resistance between “A” terminal of driver air
bag connector (1) and “a” terminal of contact coil
connector (2).
3) Measure resistance between “B” terminal of driver air
bag connector (1) and “b” terminal of contact coil
connector (2).
Special tool
(A): 09932–76010
Is each measured resistance 1
Ω or less?Go to Step 3 or 4. Replace contact coil.
“L04-4”
“L04-3”
1,(A)(A)
I7RW01821030-01
1
1
AB
(A)ba
2
I6RW0B820013-03
Downloaded from www.Manualslib.com manuals search engine 8B-89 Air Bag System:
Inspection of Intermittent and Poor
Connections
S6RW0D8204047
Most intermittents are caused by faulty electrical
connections or wiring. When a check for proper
connection is requested in a diagnostic flow, perform
careful check of suspect circuits.
If any abnormality is found, repair or replace as a wire
harness assembly.
• Poor mating of connector halves, or terminals not fully
seated in the connector body (backed out).• Dirt or corrosion on the terminals. The terminals must
be clean and free of any foreign material which could
impede proper terminal contact.
However, cleaning the terminal with a sand paper or
the like is prohibited.
• Damaged connector body, exposing the terminals to
moisture and dirt, as well as not maintaining proper
terminal orientation with the component or mating
connector. 4Contact coil circuit (horn, audio control and cruise
control switch circuit) check (cruise control model)
1) Check for continuity between each terminal of horn
switch terminals, audio control switch terminals and
cruise control switch terminals as shown in figure.
Is each measured resistance 3
Ω or less?Go to Step 5. Replace contact coil.
5Contact coil circuit check
1) Measure resistance between each terminal and other
terminal.
Is each measured resistance infinity?Contact coil and its
circuit are good
condition.Replace contact coil. Step Action Yes No
ABCDEF
GH I J KL
a bc def
gh i j k l
A
B
C
Da
b
c
d
Terminal
E
Fe
f
I
J
K
Li
j
k
l
Terminal
G
Hg
h
I7RW01822113-01