Inspection Procedure 3
Inspection Procedure 3 : When the Reverse Gear is Engaged, the Inside Rear View Mirror Can not be Set to Day Mode.
CIRCUIT OPERATION
If the automatic anti-glare inside mirror receives signal from the backup light switch
TECHNICAL DESCRIPTION (COMMENT)
The power supply circuit to the backup light switch
TROUBLESHOOTING HINTS
- Malfunction of the backup light switch
- Malfunction of the automatic anti-glare inside mirror
- Damaged harness wires or connector
DIAGNOSIS
Required Special Tools:
- MB991223: Harness Set
STEP 1. Check the automatic anti-glare inside mirror.
Darken the interior of the vehicle and shine a flash light in front and at the back of the automatic anti-glare inside mirror to check it for proper operation.
Q: Is the automatic anti-glare inside mirror normal?
YES: Go to Step 2.
NO: Go to Step 4.
STEP 2. Confirm the transaxle.
Q: Is the transaxle M/T or A/T?
M/T: Go to Step 3.
A/T: Go to Step 10.
STEP 3. Check the backup light switch.
Remove the backup light switch. Then check continuity between the switch terminals.
Q: Is the backup light switch in good condition?
YES: Go to Step 4.
NO: Replace the backup light switch. Then go to Step 17.
STEP 4. Check the backup light switch power supply circuit at the backup light switch connector B-107.
1. Disconnect the backup light switch connector B-107, and measure at the harness side.
2. Turn the ignition switch to "ON" position.
3. Measure the voltage between terminal 1 and ground.
- The value should be approximately 12 volts.
Q: Does the measured voltage correspond with this range?
YES: Go to Step 7.
NO: Go to Step 5.
STEP 5. Check the backup light switch connector B-107 for damage.
Q: Is the backup light switch connector B-107 in good condition?
YES:Go to Step 6.
NO :Repair or replace the connector. Then go to Step 17.
STEP 6. Check the wiring harness between the backup light switch connector B-107 (terminal 1) and the ignition switch (IG1).
NOTE: Also check junction block connector C-311 and C-312, joint connector C-25. If junction block connector C-311 or C-312, joint connector C-25 are damaged, repair or re pi ace the connectors. Harness Connector Inspection.
Q: Is the wiring harness between the backup light switch connector B-107 (terminal 1) and the ignition switch (IG1) in good condition?
YES :Go to Step 17.
NO : Repair the wiring harness. Then go to Step 7.
STEP 7. Check the backup light switch input circuit at the automatic anti-glare inside mirror connector D-04.
1. Disconnect the automatic anti-glare inside mirror connector D-04 and measure at the harness side.
2. Turn the ignition switch to "ON" position.
3. Turn the backup light switch to "ON" position.
4. Measure the voltage between terminal 9 and ground.
- The valve should be approximately 12 volts.
Q: Does the measured voltage correspond with this range?
YES: Replace the automatic anti-glare inside mirror. Then go to Step 17.
NO: Go to Step 8.
STEP 8. Check the backup light switch connector B-107 and automatic anti-glare inside mirror connector D-04 for damage.
Q: Are the backup light switch connector B-107 and automatic anti-glare inside mirror connector D-04 in good condition?
YES: Go to Step 9.
NO: Repair or replace the connector. Then go to Step 17.
STEP 9. Check the wiring harness between the backup light switch connector B-107 (terminal 2) and automatic anti-glare inside mirror connector D-04 (terminal 9).
NOTE: Also check joint connector C-25 and C-28. If joint connector C-25 or C-28 is damaged, repair or replace the connector. Harness Connector Inspection.
Q: Is the wiring harness between the backup light switch connector B-107 (terminal 2) and automatic anti-glare inside mirror connector D-04 (terminal 9) in good condition?
YES: Replace the automatic anti-glare inside mirror. Then go to Step 17.
NO: Repair the wiring harness. Then go to Step 17.
STEP 10. Check the transmission range switch switch.
NOTE: For vehicles with sport mode, four positions (P, R, N, D) are used.
Q: Is the switch operating properly?
YES: Go to Step 11.
NO: Repair the transmission range switch. Then go to Step 17.
STEP 11. Check the transmission range switch power supply circuit at the transmission range switch connector B-111.
1. Disconnect the transmission range switch connector B-111, and measure at the harness side.
2. Turn the ignition switch to "ON" position.
3. Measure the voltage between terminal 8 and ground.
- The value should be approximately 12 volts.
Q: Does the measured voltage correspond with this range?
YES : Go to Step 14.
NO: Go to Step 12.
STEP 12. Check transmission range switch connector B-111 for damage.
Q: Is transmission range switch connector B-111 in good condition?
YES: Go to Step 13.
NO: Repair or replace the connector. Then go to Step 17.
STEP 13. Check the wiring harness between transmission range switch connector B-111 (terminal 8) and the ignition switch (IG1).
NOTE: Also check junction block connector C-311 and C-312, joint connector C-25. If junction block connector C-311 or C-312, joint connector C-25 are damaged, repair or replace the connectors.Harness Connector Inspection P. 8W1-2.
Q: Is the wiring harness between transmission range switch connector B-111 (terminal 8) and the ignition switch (IG1) in good condition?
YES: Go to Step 17.
NO: Repair the wiring harness. Then go to Step 14.
STEP 14. Check the transmission range switch input circuit at the automatic anti-glare inside mirror connector D-04.
1. Disconnect the automatic anti-glare inside mirror connector D-04 and measure at the harness side.
2. Turn the ignition switch to "ON" position.
3. Measure the voltage between terminal 9 and ground.
- The value should be approximately 12 volts.
Q: Does the measured voltage correspond with this range?
YES: Repair the automatic anti-glare inside mirror. Then go to Step 17.
NO:Go to Step 15.
STEP 15. Check the transmission range switch connector B-111 and automatic anti-glare inside mirror connector D-04 for damage.
Q: Are the transmission range switch connector B-111 and automatic anti-glare inside mirror connector D-04 in good condition?
YES:Go to Step 16.
NO:Repair or replace the connector. Then go to Step 17.
STEP 16. Check the wiring harness between the transmission range switch connector B-111 (terminal 7) and the automatic anti-glare inside mirror connector D-04 (terminal 9).
NOTE: Also check joint connector C-25 and C-28. If joint connector C-25 or C-28 is damaged, repair or replace the connector.Harness Connector Inspection.
Q: Is the wiring harness between the transmission range switch connector B-111 (terminal 7) and the automatic anti-glare inside mirror connector D-04 (terminal 9) in good condition?
YES:Replace or repair the automatic anti-glare inside.mirror. Then go to Step 17.
NO: Repair the wiring harness. Then go to Step 17.
STEP 17. Check the symptoms
Q: When the reverse gear is engaged, is the automatic anti-glare inside mirror set to the day mode?
YES:There is no action to be taken.
NO:Replace the inside rear view mirror.