Sport Mode Switch/Indicator Always On or Inoperative
Diagnostic Instructions
Diagnostic Fault Information
Circuit
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Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
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12V Reference
|
1
|
1
|
-
|
-
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Transmission Tour Mode Indicator Control
|
1
|
1
|
B097D 01
|
-
|
1. Sport Mode Switch/Indicator Always On or Inoperative
|
|
|
Typical Scan Tool Data
Suspension System Mode
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Operating Conditions: Engine running,
normal operating temperature
Parameter Normal Range: Comfort/Sport
Mode/Normal/Hard
|
Sport Mode Switch Signal Circuit
|
Undefined
|
-
|
Undefined
|
|
|
Circuit/System Description
The sport mode switch and sport mode LED are combined into one
switch module. The body control module (BCM) monitors the status of
the sport mode switch. When the sport mode switch is pressed, the
BCM will request the suspension control module, transmission
control module (TCM) and engine control module (ECM) via serial
data to control the vehicle ride characteristic according to the
selected mode. The BCM will command the sport mode LED ON to notify
the driver of the selected mode.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
Description and Operation
Electronic Suspension Control Description and Operation
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
1. |
Verify no communication
related DTC is set. |
⇒ |
If any communication DTC is set, diagnose those
first. |
2. |
Ignition ON, observe the scan
tool Suspension System Mode parameter while pressing and releasing
the Sport Mode Switch. Verify the reading changes between Normal
and Hard. |
⇒ |
If the parameter does not change between the
specified values, go to circuit/system testing. |
3. |
Observe the sport mode LED
while pressing and releasing the Sport Mode Switch. The sport mode
LED should turn ON and OFF. |
⇒ |
If the LED does not change between the specified
values, go to circuit/system testing. |
Circuit/System Testing
Static Test
|
Note: Circuit/system
verification must be performed before circuit/system testing.
|
1. |
Ignition OFF, disconnect the
X5 harness connector at the K9 Body Control Module. |
2. |
Ignition ON, verify the sport
mode LED is OFF. |
⇒ |
If the sport mode LED does not turn OFF, test the
control circuit for a short to voltage. |
3. |
If all circuits test normal,
test or replace the S48C Multi-Function Switch 1 - Instrument Panel
Tour Mode. |
Dynamic Test
|
Note: Circuit/system
verification must be performed before circuit/system testing.
|
1. |
Ignition OFF, disconnect the
S48C Multi-Function Switch 1 - Instrument Panel harness
connector. |
2. |
Test for less than 5 Ω
between sport mode switch ground circuit terminal 1 and
ground. |
⇒ |
If not within the specified value, test the wiring
harness for an open/high resistance. |
3. |
Ignition OFF, test for more
than 11 V between the control circuit terminal 3 and ground.
|
⇒ |
If less than the specified range, test the control
circuit for short to ground or an open/high resistance. If the
circuit tests normal, replace the K9 Body Control Module. |
4. |
Install a 3 A fused jumper
wire to the control circuit terminal 3. |
5. |
Ignition ON, observe the scan
tool Suspension System Mode parameter while momentarily toggling
the fused jumper wire to ground. Verify the reading changes between
Normal and Hard. |
⇒ |
If the parameter does not change between the
specified values, replace the K9 Body Control Module. |
6. |
Ignition ON, test for more
than 11 V between the 12V reference circuit terminal 6 and
ground. |
⇒ |
If less than the specified range, test the signal
circuit for a short to ground or an open/high resistance. If the
circuit tests normal, replace the K9 Body Control Module. |
7. |
If the circuit test normal,
replace the S48C Multi-Function Switch 1 - Instrument Panel Sport
Mode . |
Component Testing
Indicator Test
1. |
Install a 10 A fused jumper
between the sport mode switch terminal 6 and 12 V. Install a jumper
wire between the sport mode switch terminal 1 and ground. The
indicator LED should illuminate. |
⇒ |
If the sport mode switch indicator does not
illuminate, replace the S48C Multi-Function Switch 1 - Instrument
Panel Sport Mode. |
2. |
Test for infinite resistance
between the sport mode switch terminal 3 and terminal 1.
|
⇒ |
If not within the specified range, replace the
S48C Multi-Function Switch 1 - Instrument Panel Sport Mode. |
3. |
Test for less than 5 Ω
between the sport mode switch terminal 3 and terminal 1 while
pressing the S48C Multi-Function Switch 1 - Instrument Panel Sport
Mode. |
⇒ |
If not within the specified range, replace the
S48C Multi-Function Switch 1 - Instrument Panel Sport Mode. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
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