Suzuki Baleno Manual page 1701

CODE NO.32 MAP SENSOR (MANIFOLD ABSOLUTE PRESSURE SENSOR)
CIRCUIT
(SIGNAL VOLTAGE HIGH – HIGH PRESSURE – LOW VACUUM)
Disconnect MAP sensor coupler with ignition switch
OFF.
With ignition switch ON, is voltage applied to "P" wire
terminal of MAP sensor coupler about 4 – 5V?
Check MAP sensor referring to "MAP SENSOR"
in this section.
Is it in good condition?
"P" wire shorted to "G" wire, "G/R" wire open, poor C12
connection, poor C3 connection, "G" wire open or poor
MAP sensor-to-coupler connection.
If wire and connections are OK, intermittent trouble of
faulty ECM (PCM).
Recheck referring to "INTERMITTENT AND POOR
CONNECTION" in Section 0A.
NOTE:
Upon completion of inspection and repair work, perform final check, referring to "FINAL CHECK" in this section to
confirm that the trouble has been corrected.
ELECTRONIC FUEL INJECTION SYSTEM (G13/G16 ENGINE WITHOUT WU TWC) 6E1-37
YES
YES
NO
"P" wire shorted to power circuit.
If wire is OK, substitute a known-
good ECM (PCM) and recheck.
NO
Faulty MAP sensor.
1. ECM (PCM)
2. ECM (PCM) coupler
3. MAP sensor
4. MAP sensor coupler
5. To TP sensor
6. To other sensors
1. MAP sensor coupler
2. Engine ground
3. "P" wire
NOTE:
When battery voltage is
applied to "P" wire, it is
possible that MAP sensor
is also faulty.