INSPECTION PROCEDURE 7: When "CRUISE" (MAIN) Switch is Turned "ON", "CRUISE" Indicator Light Inside Combination Meter does not Illuminate. (However, Auto-cruise Control is Normal).: Diagnosis
Required Special Tool:
- MB991958: Scan tool (MUT-III sub assembly)
- MB991824: V.C.I.
- MB991827: MUT-III USB cable
- MB991911: MUT-III main harness B
- STEP 1. Check that the indicator light inside the combination meter illuminates.
- Turn the ignition switch to the "ON" position.
- Check the indicator lights other than "CRUISE" indicator light illuminate.
- Turn the ignition switch to the "LOCK" (OFF) position.
Q: Do the indicator lights other than the "CRUISE" indicator light illuminate normally?
- YES: Go to Step 6.
- NO: Go to Step 2.
- STEP 2. Check combination meter connector C-01, joint connector (5) C-21 and junction block connector C-214 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Are there connectors and terminals in good condition?
- YES: Go to Step 3.
- NO: Repair or replace the damaged components. Then go to Step 11.
- STEP 3. Check the harness wire between combination meter connector C-01 terminal 9 and junction block connector C-214 terminal 25 for damage.
Q: Are there harness wires in good condition?
- YES: Go to Step 4.
- NO: Repair the damaged harness wire. Then go to Step 11.
- STEP 4. Check fuse number 2 at the junction block.
Q: Is the fuse in good condition?
- YES: Go to Step 5.
- NO: Replace the fuse. Then go to Step 11.
- STEP 5. Check that the indicator light inside the combination meter illuminates.
- Turn the ignition switch to the "ON" position.
- Check that the indicator light inside the combination meter illuminates.
- Turn the ignition switch to the "LOCK" (OFF) position.
Q: Does the indicator light illuminate normally.
- YES: It can be assumed that this malfunction is intermittent. (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS ).
- NO: Replace the combination meter. (Refer to COMBINATION METER ASSEMBLY ). Then go to Step 11.
- STEP 6. Check combination meter connector C-02, intermediate connector C-108 and ECM connector C-133 < M/T > or PCM connector C-134 < A/T > for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Are the connectors and terminals in good condition?
- YES: Go to Step 7.
- NO: Repair or replace the damaged components. Then go to Step 11.
- STEP 7. Check the harness wire between combination meter connector C-02 terminal 33 and ECM connector C-133 < M/T > terminal 13 or PCM connector C-134 < A/T > terminal 13 for damage.
Q: Are the harness wires in good condition?
- YES: Go to Step 8.
- NO: Repair the damaged harness wire. Then go to Step 11.
- STEP 8. Check the auto-cruise control indicator light bulb.
- Remove the combination meter. (Refer to COMBINATION METER ASSEMBLY ).
- Check the auto-cruise control indicator light bulb.
Q: Is the bulb in good condition?
- YES: Install the combination meter. (Refer to COMBINATION METER ASSEMBLY ). Then go to Step 9.
- NO: Replace the bulb and install the combination meter. (Refer to COMBINATION METER ASSEMBLY ). Then go to Step 11.
- STEP 9. Measure the terminal voltage at ECM connector C-133 < M/T > or PCM connector C-134 < A/T >.
- Disconnect ECM connector C-133 < M/T > or PCM connector C-134 < A/T > measure the harness connector.
- Turn the ignition switch to the "ON" position.
- Measure the terminal voltage between ECM connector C-133 < M/T > terminal 13 or PCM connector C-134 < A/T > terminal 13 and ground.
- When the ignition switch to the "ON" position, the voltage should measure battery positive voltage (approximately 12 volts).
- When the ignition switch to the "LOCK" (OFF) position, the voltage should measure 0.5 volt or less.
- Turn the ignition switch to the "LOCK" (OFF) position.
- Connect ECM connector C-133 < M/T > or PCM connector C-134 < A/T >.
Q: Is the measured voltage battery positive voltage (approximately 12 volts) when ignition switch to the "ON" position, and 0.5 volt or less when ignition switch to the "OFF" (LOCK) position?
- YES: Go to Step 10.
- NO: Replace the combination meter (Refer to COMBINATION METER ASSEMBLY ). Then go to Step 11.
- STEP 10. Check the symptoms.
Q: Does the auto-cruise control indicator light illuminate when "CRUISE" (MAIN) switch is turned "ON"?
- YES: It can be assumed that this malfunction is intermittent. (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS ).
- NO: Replace the ECM < M/T > or PCM < A/T > [Refer to ENGINE CONTROL MODULE (ECM) AND POWERTRAIN CONTROL MODULE (PCM) ]. Then go to Step 11.
- STEP 11. Check the symptoms.
Q: Does the auto-cruise control indicator light illuminate when "CRUISE" (MAIN) switch is turned "ON"?
- YES: Return to Step 1.
- NO: The procedure is complete.