Snow Mode Switch
SNOW Mode SwitchCONSULT II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
DIAGNOSTIC PROCEDURE
1. CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self diagnosis. Refer to SELF-DIAG RESULT MODE.
Is the CAN COMM CIRCUIT [U1000] displayed?
YES >> Perform trouble diagnosis for CAN communication line. CAN Communication Line
NO >> GO TO 2.
2. CHECK SNOW MODE SWITCH SIGNAL
With CONSULT-II
1. Turn ignition switch ON.
2. Select DATA MONITOR mode for ALL MODE AWD/4WD with CONSULT-II.
3. Read out monitor 4WD MODE SW with operating SNOW mode switch.
OK or NG
OK >> GO TO 8.
NG >> GO TO 3.
3. CHECK SNOW MODE SWITCH
1. Turn ignition switch OFF.
2. Disconnect SNOW mode switch harness connector.
3. Operate SNOW mode switch and check continuity between SNOW mode switch harness connector M92 terminals 1 and 4.
OK or NG
OK >> GO TO 4.
NG >> Replace SNOW mode switch.
4. CHECK SNOW MODE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect SNOW mode switch harness connector.
3. Turn ignition switch ON. (Do not start engine.)
4. Check voltage between SNOW mode switch harness connector terminal and ground.
5. Turn ignition switch OFF.
6. Check voltage between SNOW mode switch harness connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> Check the following. If any items are damaged, repair or replace damaged parts.
^ 10A fuse No. 82, located in the IPDM E/RI
^ Harness for short or open between ignition switch and SNOW mode switch harness connector terminal 1
^ Ignition switch. Refer to POWER SUPPLY ROUTING CIRCUIT.
5. CHECK SNOW MODE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter harness connector.
3. Turn ignition switch ON. (Do not start engine.)
4. Check voltage between combination meter harness connector terminals and ground.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. CHECK HARNESS BETWEEN SNOW MODE SWITCH AND COMBINATION METER
1. Turn ignition switch OFF.
2. Disconnect SNOW mode switch harness connector and combination meter harness connector.
3. Check continuity between SNOW mode switch harness connector M92 terminal 4 (R/L) and combination meter harness connector M19 terminal 15 (R/L), 16 (R/L).
Continuity should exist.
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. CHECK COMBINATION METER
Check combination meter input/output signal. Refer to Terminals and Reference Value for Combination Meter.
OK or NG
OK >> GO TO 8.
NG >> Check combination meter pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
8. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to AWD Control Unit Input/Output Signal Reference Values.
OK or NG
OK >> INSPECTION END
NG >> Check AWD control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
COMPONENT INSPECTION
Part of Switch
1. Turn ignition switch OFF.
2. Disconnect SNOW mode switch harness connector.
3. Operate SNOW mode switch and check continuity between SNOW mode switch harness connector M92 terminals 1 and 4.
4. If NG, replace SNOW mode switch.
Part of Indicator
1. Remove SNOW mode switch.
2. Check indicator by applying battery voltage to SNOW mode switch harness connector M92 terminals 1 and 2.
CAUTION: Be sure to apply the voltage of the correct polarity to the respective terminals. Otherwise, the part may be damaged.
3. If NG, replace SNOW mode switch.