Body Control Computer - Tests: Diagnosis Jeep Cherokee II рестайлинг

CMTC SYMPTOM TESTS

Note. Compass Mini-Trip Computer (CMTC) may also be known as Overhead Console.

Note. Perform SYSTEM ID TEST before proceeding with following tests. For connector terminal identification, see BODY CONTROL COMPUTER INTRODUCTION article. For wiring diagrams, see DATA LINK CONNECTORS and OVERHEAD CONSOLES & VEHICLE INFORMATION CENTERS article. Perform VERIFICATION TEST: VER-2A after each repair.

The following Compass Mini-Trip Computer (CMTC) symptoms are covered

1. «CMTC Average MPH Or Fuel Economy Wrong»(ref-1102-S30861609782000031300000)
2. «CMTC Trip Odometer Inoperative Or Wrong»(ref-1102-S30861609782000031300000)
3. «CMTC Distance To Empty Inoperative Or Wrong»(ref-1102-S12200541782000031300000)
4. «CMTC Fails To Light»(ref-1102-S35801353452000031300000)
5. «CMTC Elapsed Time Inoperative Or Wrong»(ref-1102-S35801353452000031300000)
6. «CMTC Shows CCD»(ref-1102-S19829885682000031300000)
7. «CMTC Displays OC»(ref-1102-S37968341902000031300000)
8. «CMTC Displays SC»(ref-1102-S23913557252000031300000)
9. «CMTC Switch Inoperative»(ref-1102-S41983159642000031300000)
10. «Incorrect Ambient Temperature Reading»(ref-1102-S17428143832000031300000)

INSTRUMENT CLUSTER SYMPTOM TESTS

Note. Perform SYSTEM ID TEST before proceeding with following tests. For connector terminal identification, see BODY CONTROL COMPUTER INTRODUCTION article. For wiring diagrams, see DATA LINK CONNECTORS and INSTRUMENT PANELS article. Perform VERIFICATION TEST: VER-2A after each repair.

The following instrument cluster symptoms are covered

1. «All Gauges Not Operating»(ref-1102-S27684949302000031300000)
2. «Any CCD Cluster Warning Light Not Operating»(ref-1102-S35184905312000031300000)
3. «Any Hard Wired Warning Light Not Operating»(ref-1102-S12821413602000031300000)
4. «One Gauge Not Operating Properly»(ref-1102-S22675570642000031300000)

RKE SYMPTOM TESTS

Note. Perform SYSTEM ID TEST before proceeding with following tests. For connector terminal identification, see BODY CONTROL COMPUTER INTRODUCTION article. For wiring diagrams, see DATA LINK CONNECTORS and KEYLESS ENTRY & POWER DOOR LOCKS article. Perform VERIFICATION TEST: VER-2A after each repair.

The following RKE symptoms are covered

1. «Illuminated Entry Inoperative»(ref-1102-S22589998682000031300000)
2. «Remote Keyless Entry Inoperative»(ref-1102-S06366895572000031300000)

VTSS DIAGNOSTIC TESTS

Note. Perform SYSTEM ID TEST before proceeding with following tests. For connector terminal identification and wiring diagrams, see BODY CONTROL COMPUTER INTRODUCTION. Perform VERIFICATION TEST: VER-2A after each repair.

The following vehicle theft security system fault messages are covered

1. «EEPROM Failure»(ref-1102-S41981650212000031300000)
2. «PCM Status Failure»(ref-1102-S23917314362000031300000)
3. «Rolling Code Failure»(ref-1102-S04521969862000031300000)
4. «Serial Link External Failure»(ref-1102-S19496001492000031300000)
5. «Serial Link External Failure - Sending Secret Key To PCM»(ref-1102-S00084253162000031300000)
6. «Transponder Communication Failure»(ref-1102-S26400861352000031300000)
7. «Transponder CRC Failure»(ref-1102-S39243290942000031300000)
8. «Transponder ID Mismatch»(ref-1102-S21069547682000031300000)
9. «Transponder Response Mismatch»(ref-1102-S21069547682000031300000)
10. «VIN Mismatch»(ref-1102-S29866855622000031300000)

BODY VERIFICATION TEST

1. Reconnect all previously disconnected components and connectors. If BCM was replaced, turn ignition on for at least 15 seconds.
2. Ensure ignition is on. Erase all DTCs using scan tool. Turn ignition off and wait 5 seconds. Turn ignition on and fully operate system that was malfunctioning.
3. If system is not operating properly, go to «SYMPTOM ID TEST»(ref-1102-S08449718912000031300000) . Using scan tool, read Body DTCs. If any DTCs are present, go to «SYMPTOM ID TEST»(ref-1102-S08449718912000031300000) . If no DTCs are present, system is operating correctly and customer's complaint cannot be duplicated, repair is complete.

PROGRAMMING BLANK SMART KEY USING SCAN TOOL

1. Once key blank is cut, insert key into ignition switch. Turn ignition switch to RUN position. Using scan tool, select THEFT ALARM, then SKIM. Select MISCELLANEOUS, then PROGRAM NEW KEY. Enter 4 digit PIN code. When programming is completed, SKIM will exit SECURED ACCESS mode and display status of key. One of five different status messages maybe displayed as follows: PROGRAMMING SUCCESSFUL is displayed if SKIM smart key programming succeeds. LEARNED KEY IN IGNITION is displayed if key in the ignition has already been programmed into vehicle's SKIM. 8 KEYS ALREADY LEARNED, PROGRAMMING NOT DONE is displayed if eight keys have already been programmed into SKIM. If a new key needs to be added due to a lost or defective key, the ERASE ALL KEYS function has to be performed. Original 7 keys plus additional new key may then be reprogrammed into SKIM. PROGRAMMING NOT ATTEMPTED is displayed after an ERASE ALL KEYS function is executed. PROGRAMING KEY FAILED is displayed if further diagnosis is required.
2. To program additional keys, turn ignition off. Remove current programmed key and insert next new blank key. Turn ignition switch to RUN position. Re-enter SECURED ACCESS mode function and repeat PROGRAM NEW KEY procedure.