Jeep Wrangler TJ. Manual — part 36
Symptom:
*4WD INDICATOR INOPERATIVE
POSSIBLE CAUSES
INTERMITTENT CONDITION
TRANSFER CASE SWITCH - EXCEPT OFF-ROAD PACKAGE
4WD INDICATOR CIRCUIT OPEN
TRANSFER CASE SWITCH GROUND CIRCUIT OPEN - EXCEPT OFF-ROAD PACKAGE
TRANSFER CASE SWITCH - OFF-ROAD PACKAGE
TRANSFER CASE POSITION SENSOR INPUT CIRCUIT OPEN
TRANSFER CASE SWITCH GROUND CIRCUIT OPEN - OFF-ROAD PACKAGE
INSTRUMENT CLUSTER - EXCEPT OFF-ROAD PACKAGE
INSTRUMENT CLUSTER - OFF-ROAD PACKAGE
TEST
ACTION
APPLICABILITY
1
Is vehicle equipped with the optional Off-Road Package?
All
Yes
→ Go To 2
No
→ Go To 6
2
Perform the Instrument Cluster self-test.
Turn the ignition off.
Press and hold the Trip Reset button.
Turn the ignition on.
Observe the 4WD indicator during the self-test.
NOTE: The Instrument Cluster self-test can be initiated using the DRBIII
t.
Did the 4WD indicator illuminate during the self-test?
All
Yes
→ Go To 3
No
→ Replace and configure the Instrument Cluster in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition on, Transfer Case Shift Lever in 2H.
With the DRBIII
t in Inputs/Outputs, read the 4WD Switch state.
Place the Transfer Case Shift Lever in 4H or 4L while observing the 4WD Switch
State.
Did the Does the DRBIII
t display 4H or 4L?
All
Yes
→ The condition is not present at this time. Monitor DRBIIIt
parameters while wiggling the related wire harness. Refer to any
Technical Service Bulletins (TSB) that may apply. Visually in-
spect the related wiring harness and connector terminals.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
141
INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Transfer Case Switch harness connector.
Connect a jumper wire between cavity 1 and cavity 2.
Turn the ignition on.
With the DRBIII
t, read the 4WD Switch input.
Does the DRBIII
t display 9Closed?9
All
Yes
→ Replace the Transfer Case Switch in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the Transfer Case Switch harness connector.
Disconnect the PCM C1 harness connector.
Measure the resistance of the Transfer Case Position Sensor Input circuit between
the T/Case Switch connector and the PCM C1 connector.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Transfer Case Position Sensor Input circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Transfer Case Switch Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
6
Turn the ignition on.
With the DRBIII
t, select Body, MIC, then Inputs/Outputs.
Move the transfer case shift lever from the 2H to the 4H or 4L position.
Does the DRBIII
t display 4WD Switch 9Closed9 with the shift lever in the 4H or 4L
position?
All
Yes
→ Replace and configure the Instrument Cluster in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 7
7
Turn the ignition off.
Disconnect the Transfer Case Switch harness connector.
Connect a jumper wire between cavity A and cavity B.
Turn the ignition on.
With the DRBIII
t, read the 4WD Switch input.
Does the DRBIII
t display 9Closed9.
All
Yes
→ Replace the Transfer Case Switch in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 8
142
INSTRUMENT CLUSTER
*4WD INDICATOR INOPERATIVE —
Continued
TEST
ACTION
APPLICABILITY
8
Turn the ignition off.
Disconnect the Transfer Case Switch harness connector.
Connect a jumper wire between the 4WD Indicator circuit and ground.
Turn the ignition on.
With the DRBIII
t, read the 4WD Switch state.
Does the DRBIII
t display 9Closed9?
All
Yes
→ Go To 9
No
→ Repair the 4WD Indicator circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
9
Turn the ignition off.
Disconnect the Transfer Case Switch harness connector.
Measure the resistance between ground and the Transfer Case Switch Ground
circuit.
Is the resistance below 5.0 ohms?
All
Yes
→ The condition is not present at this time. Monitor DRBIIIt
parameters while wiggling the related wire harness. Refer to any
Technical Service Bulletins (TSB) that may apply. Visually in-
spect the related wiring harness and connector terminals.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Transfer Case Switch Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
143
INSTRUMENT CLUSTER
*4WD INDICATOR INOPERATIVE —
Continued
Symptom:
*ABS INDICATOR INOPERATIVE
POSSIBLE CAUSES
ABS DTC
INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
1
NOTE: The Instrument Cluster ABS Indicator will not illuminate during the
cluster Self Test. The indicator is controlled by PCI Bus messages received
from the CAB.
NOTE: The CAB will command the ABS Indicator on when the ignition is
cycled to the Run/Start position.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display any ABS DTCs?
All
Yes
→ Refer to the Anti-Lock Brake System category and perform the
appropriate symptom.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
144
INSTRUMENT CLUSTER
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст