Description & Operation
The switch monitor test uses PIDs to check the operation of certain switches (and related circuits) that do not set codes.
- Turn ignition on. Connect NGS scan tool. See EQUIPMENT HOOKUP. Using NGS scan tool, enter PID/DATA MONITOR AND RECORD function.
- Select PIDs for switches in question. See SWITCH TESTING table. Operate switch as described in table. If switch does not operate as described, proceed to circuit test suggested in table.
SWITCH TESTING
| Switch (PID) | Test Condition | PID Value | Circuit Test | ||
|---|---|---|---|---|---|
| A/C Selector Switch (ACS) | A/C Selector Switch In A/C Position | ON | KM | ||
| A/C Selector Switch (ACS) | A/C Selector Switch In Other Than A/C Position | OFF | KM | ||
| Blower Motor Switch (BLR SW) | Blower Switch In Positions 3 or 4 | ON | KM | ||
| Blower Motor Switch (BLR SW) | Blower Switch In Positions 1 or 2 | OFF | KM | ||
| Brake On/Off Switch (STP SW) | Brake Pedal Depressed | ON | FD | ||
| Brake On/Off Switch (STP SW) | Brake Pedal Release | OFF | FD | ||
| Daytime Running Lights (DRL SW) | Parking Brake Released, Key On | ON | (1) | ||
| Daytime Running Lights (DRL SW) | Parking Brake Set, Key On | OFF | (1) | ||
| Headlight Switch (HDL SW) | Headlights On | ON | DI | ||
| Headlight Switch (HDL SW) | Headlights Off | OFF | DI | ||
| High Fan Control (FANHP) | DLC TEN Pin Grounded & Gas Pedal Pressed | ON | KF | ||
| High Fan Control (FANHP) | DLC Not Grounded | OFF | KF | ||
| Idle Switch (IDL SW) | Gas Pedal Depressed | OFF | DH | ||
| Idle Switch (IDL SW) | Gas Pedal Released | ON | DH | ||
| Rear Window Defrost (DEF SW) | Rear Defroster Switch On | ON | DI | ||
| Rear Window Defrost (DEF SW) | Rear Defroster Switch On | OFF | DI | ||
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