Dodge Ram. Manual — part 78
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the IPM C3 harness connector.
Measure the resistance of the Sensor Ground circuit between the IPM C2 harness
connector and the Sensor harness connector.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Ambient Temperature Sensor Return circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the IPM C3 harness connector.
Disconnect the Ambient Temperature Sensor harness connector.
Measure the resistance of the Ambient Temperature Sensor Signal circuit between
the IPM C2 harness connector and the Sensor harness connector.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Ambient Temperature Sensor Signal circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Front Control Module in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
309
COMPASS/MINI-TRIP COMPUTER
FCM - AMBIENT TEMP SENSOR INPUT OPEN —
Continued
Symptom:
SET COMPASS VARIANCE AS PER SERVICE INFORMATION
POSSIBLE CAUSES
SET COMPASS VARIANCE
TEST
ACTION
APPLICABILITY
1
Refer to the Service Information for the Compass Variance procedure.
View repair for the Verification Test.
All
Repair
When the Compass Variance procedure is complete perform the
Verification Test.
Perform BODY VERIFICATION TEST - VER 1.
310
COMPASS/MINI-TRIP COMPUTER
Symptom List:
*AVERAGE FUEL ECONOMY INACCURATE OR WRONG
*DISTANCE TO EMPTY INACCURATE OR WRONG
*ELAPSED IGNITION ON TIME INACCURATE OR WRONG
*TRIP ODOMETER INACCURATE OR WRONG
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be *AVERAGE FUEL ECONOMY
INACCURATE OR WRONG.
POSSIBLE CAUSES
CMTC
TEST
ACTION
APPLICABILITY
1
NOTE: Diagnose and repair any FCM, PCM, or Communication DTCs before
proceeding with this test.
NOTE: Ensure that the CMTC has been configured for the correct fuel tank
size. Use the DRBIII
t to verify or modify the fuel tank size configuration.
Perform the CMTC Self Test.
The self test can be performed with the DRBIII
t or manually using the following
procedure:
Turn the ignition off.
Press and hold the RESET and C/T buttons.
Turn the ignition on.
Continue to hold both buttons until the software version is displayed, then release
the buttons.
Observe the CMTC display when the self test is complete.
Did the CMTC display
9FAILED SELF TEST9?
All
Yes
→ Replace and configure the CMTC in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
311
COMPASS/MINI-TRIP COMPUTER
Symptom:
*CMTC OR EVIC INOPERATIVE
POSSIBLE CAUSES
FUSED B(+) CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
GROUND CIRCUIT OPEN
COMPASS/MINI-TRIP COMPUTER
TEST
ACTION
APPLICABILITY
1
NOTE: Diagnose and repair any MIC, FCM, PCM, or Communication DTCs
before proceeding.
Turn the ignition off.
Disconnect the Overhead Console harness connector.
Measure the voltage between the Fused B+ circuit and ground.
Is the voltage above 10.5 volts?
All
Yes
→ Go To 2
No
→ Repair the Fused B+ circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the Overhead Console harness connector.
Turn the ignition on.
Measure the voltage between the Fused Ignition Switch Output circuit and ground.
Is the voltage below 10.5 volts?
All
Yes
→ Repair the Fused Ignition Switch Output circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition off.
Disconnect the Overhead Console harness connector.
Measure the resistance between ground and the CMTC ground circuit.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace and configure the CMTC in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
312
COMPASS/MINI-TRIP COMPUTER
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст