Step
| Action
| Value(s)
| Yes
| No
|
1
| Was the
Driver Information Center System Check performed?
| --
| Go to
Step 2
| Go to
Driver Information System Check
|
2
| Did you test the vehicle
for diagnostic trouble codes (DTCs)?
| --
| Go to
Step 3
| Go to Powertrain OBD System Check in Engine Electrical
|
3
| Do the speedometer
and the odometer operate correctly?
| --
| Go to
Step 4
| Go to
Speedometer and/or Odometer Inoperative
|
4
|
- Disconnect the ambient air temperature sensor connector.
- Connect a J 39200
.
- Measure the resistance across the ambient air temperature sensor
terminals at two different temperatures.
- Compare the readings to the specified measurements. Refer to
Sensor Resistance Table
.
Are the readings within specifications?
| --
| Go to
Step 6
| Go to
Step 5
|
5
| Replace the ambient air temperature sensor. Refer to Sensor Replacement -
Outside Air Temperature.
Is the repair complete?
| --
| Go to
Driver Information System Check
| --
|
6
|
- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
in General Information.
- Disconnect the DIC connector.
- Using the J 35616
, connect
a J 39200
digital multimeter (DMM) to
DIC connector C1, cavity 7 (CKT 817) and connector C1,
cavity 6 (CKT 451). Connect the RED lead to cavity 7.
Connect the BLK lead to cavity 6.
- Set the J 39200
DMM to measure
DC volts.
- Push the Hz button once on the J 39200
DMM. Hz should be displayed on the right side of the screen.
- Start the vehicle.
- Depress the brake pedal.
- Place the vehicle in a forward gear.
- Release the brake.
- Accelerate in order to maintain a constant speed of 25 mph.
(MPH x 1.111 = Hz)
Does the J 39200
DMM show a value
within the specified range?
| 25-30 Hz
| Go to
Step 8
| Go to
Step 7
|
7
|
- Repair the open or high resistance in CKT 817 between the
DIC connector C1, terminal 7 and the underhood fuse block C1,
terminal F7.
- Inspect the system.
Is the repair complete?
| --
| Go to
Driver Information System Check
| --
|
8
| Replace the DIC. Refer to Driver Information Center Replacement.
Is the repair complete?
| --
| Go to
Driver Information System Check
| --
|
