Suzuki Grand Vitara XL-7 Service Manual page 98

6-38 ENGINE DIAGNOSIS (RHZ ENGINE WITH SINGLE-CONNECTOR ECM)
TROUBLESHOOTING
STEP
1 Was "ENGINE DIAG. FLOW TABLE" performed?
2 Check Sensor Power Supply Circuit
Is DTC below also indicated?
<Using Suzuki mode of Suzuki Scan tool>
P1614
<Using Generic Scan tool or Euro mode of Suzuki
Scan tool>
P0560
3 Check Wire Harness.
1) Disconnect connector from TP sensor with
ignition switch OFF.
2) Check for proper connection to TP sensor at
each terminals.
3) If OK, then with ignition switch ON, check voltage
between "LT GRN" wire and "BRN" wire terminals
at connector of TP sensor.
Is voltage about 5 V?
4 Check TP Sensor output voltage.
1) Remove ECM cover referring to "Voltage Check"
in this section.
2) With ignition switch ON, check voltage between
C51-15 and ground, when accelerator pedal is at
idle position to fully depressed position.
Is voltage 0.5 – 3.35 V?
ACTION YES
Go to Step 2.
Go to DTC P1614
(P0560) Diag. Flow
Table.
Go to Step 4.
Substitute a known-
good ECM and
recheck.
NO
Go to "ENGINE DIAG.
FLOW TABLE".
Go to Step 3.
"LT GRN" wire open,
"BRN" wire open, poor
C51-44 connection, or
poor C51-22
connection.
If wire and connection
are OK, substitute a
known-good ECM
and recheck.
"GRN /BLU" wire
open, "GRN/BLU"
wire shorted to ground
circuit/power circuit.
Poor TP sensor
connector.
If wire and connection
are OK, substitute a
known-good TP
sensor.