Suzuki Wagon R Plus RB310 Service Manual page 210

ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-35
IGNITION ADVANCE (IGNITION TIMING ADVANCE FOR NO.1 CYLINDER, °)
Ignition timing of NO.1 cylinder is commanded by ECM. The actual ignition timing should be checked by using
the timing light.
BATTERY VOLTAGE (V)
This parameter indicates battery positive voltage inputted from main relay to ECM.
FUEL PUMP (ON/OFF)
ON is displayed when the ECM activates the fuel pump via the fuel pump relay switch.
ELECTRIC LOAD (ON/OFF)
ON: Headlight or small light ON signal inputted.
OFF: Above electric loads all turned OFF.
BRAKE SW (ON/OFF)
This parameter indicates the state of the brake switch.
RADIATOR FAN (RADIATOR FAN CONTROL RELAY, ON/OFF)
ON: Command for radiator fan control relay operation being output.
OFF: Command for relay operation not being output.
BLOWER FAN (ON/OFF)
This parameter indicates the state of the blower fan motor switch.
A/C SWITCH (ON/OFF)
ON: Command for A/C operation being output from ECM to A/C amplifier.
OFF: Command for A/C operation not being output.
A/C MAG SWITCH (A/C COMPRESSOR RELAY, ON/OFF)
This parameter indicates the state of the A/C switch.
VEHICLE SPEED (km/h)
It is computed based on pulse signals from vehicle speed sensor.