Jeep Wrangler TJ. Manual — part 143
TEST
ACTION
APPLICABILITY
3
Ignition On, Engine Not Running.
With the DRBIII
t, under Transmission Sensors, monitor the TPS voltage in the
following step.
Slowly open and close the throttle while checking for erratic voltage changes.
Did the TPS voltage change smooth and consistent?
All
Yes
→ Go To 4
No
→ Replace the Throttle Position Sensor per the Service Information.
Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.
4
Using the schematics as a guide, inspect the wiring and connectors. Repair as
necessary. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.
All
Repair
Replace the Transmission Control Module per the Service Infor-
mation. WITH THE DRBIII
t PERFORM QUICK LEARN.
Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.
297
TRANSMISSION - 42RLE
P0124-
THROTTLE
POSITION
SENSOR/APPS
INTERMITTENT
—
Continued
Symptom:
P0218-HIGH TEMPERATURE OPERATION ACTIVATED
When Monitored and Set Condition:
P0218-HIGH TEMPERATURE OPERATION ACTIVATED
When Monitored:
Whenever the engine is running.
Set Condition:
Immediately when the Overheat shift schedule is activated 116 C (240 F)
Transmission oil temp.
POSSIBLE CAUSES
ENGINE COOLING SYSTEM MALFUNCTION
TRANSMISSION OIL COOLER PLUGGED
HIGH TEMPERATURE OPERATIONS ACTIVATED
TEST
ACTION
APPLICABILITY
1
NOTE: Low fluid level can be the cause of many Transmission problems. If
the fluid level is low, locate and repair the leak, then check and adjust the
fluid level per the Service Information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIII
t, read the engine DTC’s. Check and repair all engine DTC’s prior
to performing Transmission Symptom Diagnostics.
With the DRBIII
t, read Transmission DTC’s. Record all DTC’s and 1 Trip Failures.
NOTE: Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Perform the Shift Lever Position Test. If the test does not pass, refer to Symptom test
for P0706 Check Shifter Signal.
For Gear Ratio DTC’s, check and record all CVI’s.
Most DTC’s set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
NOTE: Verify flash level of Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable TSB’s related to the symptom.
Perform this procedure prior to Symptom diagnosis.
All
Continue
298
TRANSMISSION - 42RLE
TEST
ACTION
APPLICABILITY
2
This DTC is an informational DTC designed to aid the Technician in diagnosing shift
quality complaints.
This DTC indicates that the Transmission has been operating in the
9Overheat9 shift
schedule which may generate a customer complaint.
The customer driving patterns may indicate the need for an additional Transmission
Oil Cooler.
With the DRBIII
t, check the EATX EVENT DATA to help identify the conditions in
which the DTC was set.
Were there any problems found?
All
Yes
→ Repair the cause of the Transmission Overheating per the Service
Information. If indicated install an additional Transmission Oil
Cooler.
Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.
No
→ Go To 3
3
Perform Engine Cooling System diagnostics per the Service Information
Is the Engine Cooling System functioning properly?
All
Yes
→ Go To 4
No
→ Repair the cause of the Engine Overheating. Refer to the Service
Information for additional repair information.
Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.
4
If there are no possible causes remaining, view repair.
All
Repair
Flush or replace the Transmission Oil cooler as necessary per the
Service Information.
Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.
299
TRANSMISSION - 42RLE
P0218-HIGH TEMPERATURE OPERATION ACTIVATED —
Continued
Symptom:
P0562-LOW BATTERY VOLTAGE
When Monitored and Set Condition:
P0562-LOW BATTERY VOLTAGE
When Monitored:
With the engine running and the TCM has closed the Transmission
Control Relay.
Set Condition:
If battery voltage at TCM Transmission Control Relay Output Sense
circuit is less than 10.0 volts for 15 seconds. *This DTC generally indicates a gradually
falling battery voltage or resistive connections to the TCM.
POSSIBLE CAUSES
RELATED CHARGING SYSTEM DTCS
INTERMITTENT WIRING AND CONNECTORS
FUSED B+ CIRCUIT OPEN OR HIGH RESISTANCE
GROUND CIRCUIT OPEN OR HIGH RESISTANCE
TRANS CONTROL RELAY OUTPUT TO TCM OPEN OR HIGH RESISTANCE
TRANSMISSION CONTROL RELAY OPEN OR HIGH RESISTANCE
TRANSMISSION CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
NOTE: Low fluid level can be the cause of many Transmission problems. If
the fluid level is low, locate and repair the leak, then check and adjust the
fluid level per the Service Information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIII
t, read the engine DTC’s. Check and repair all engine DTC’s prior
to performing Transmission Symptom Diagnostics.
With the DRBIII
t, read Transmission DTC’s. Record all DTC’s and 1 Trip Failures.
NOTE: Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Perform the Shift Lever Position Test. If the test does not pass, refer to Symptom test
for P0706 Check Shifter Signal.
For Gear Ratio DTC’s, check and record all CVI’s.
Most DTC’s set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
NOTE: Verify flash level of Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable TSB’s related to the symptom.
Perform this procedure prior to Symptom diagnosis.
All
Continue
300
TRANSMISSION - 42RLE
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст