ENGINE DIAGNOSIS (RHZ ENGINE WITH TRIPLE-CONNECTOR ECM)
6-1-17
TROUBLESHOOTING
STEP
ACTION
YES
NO
1
Was “ENGINE DIAG. FLOW TABLE” performed?
Go to Step 2.
Go to “ENGINE DIAG.
FLOW TABLE”.
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
Go to DTC P1614
(P0560) Diag. Flow
Table.
Go to Step 3.
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?
Go to Step 4.
“LT GRN” wire open,
“BRN” wire open, poor
E227-23 connection,
or poor E227-16
connection.
If wire and connection
are OK, substitute a
known-good ECM
and recheck.
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
E227-15 and ground, when accelerator pedal is
at idle position to fully depressed position.
Is voltage 0.5 – 3.35 V?
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.
