PR25DD engine
- CHECK DTC PRIORITY
If DTC P1564 is displayed with DTC P0603, P0604, P0605, P0606, P0607, P060A, and P060B, first perform the trouble diagnosis for DTC P0603, P0604, P0605, P0606, P0607, P060A, and P060B.
Is applicable DTC detected?
YES
Perform diagnosis of applicable. Refer to DTC Index .
NO
GO TO 2.
- CHECK ICC STEERING SWITCH CIRCUIT
With CONSULT
- Turn ignition switch ON.
- Select following items in "DATA MONITOR" mode of "ENGINE" using CONSULT.
- Check each item indication as per the following conditions.
Monitor item
Condition
Indication
MAIN SW
MAIN switch
Pressed
ON
Released
OFF
CANCEL SW
CANCEL switch
Pressed
ON
Released
OFF
DIST
DISTANCE switch
Pressed
ON
Released
OFF
RESUME/ACC SW
RES+ switch
Pressed
ON
Released
OFF
SET SW
SET- switch
Pressed
ON
Released
OFF
Without CONSULT
- Turn ignition switch ON.
- Check the voltage between ECM harness connector terminals.
ECM
Condition
Voltage
(Approx.)
Connector
+
-
Terminal
E31
144
145
MAIN switch: Pressed
Approx. 0
CANCEL switch: Pressed
Approx. 1.18
DISTANCE switch: Pressed
Approx. 1.51
SET- switch: Pressed
Approx. 2.00
RES+ witch: Pressed
Approx. 2.71
Is the inspection result normal?
YES
Check intermittent incident. Refer to Inspection .
NO
GO TO 3.
- CHECK ICC STEERING SWITCH GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Disconnect combination switch (spiral cable) harness connector.
- Check the continuity between combination switch (spiral cable) and ECM harness connector.
+
-
Continuity
Combination switch
(Spiral cable)
ECM
Connector
Terminal
Connector
Terminal
M30
1
E31
145
Existed
- Also check harness for short to ground and to power.
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace error-detected parts.
- CHECK ICC STEERING SWITCH INPUT SIGNAL CIRCUIT
- Check the continuity between ECM harness connector and combination switch.
+
-
Continuity
Combination switch
(Spiral cable)
ECM
Connector
Terminal
Connector
Terminal
M30
8
E31
144
Existed
- Also check harness for short to ground and to power.
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace error-detected parts.
- Check the continuity between ECM harness connector and combination switch.
- CHECK ICC STEERING SWITCH
Refer to Component Inspection .
Is the inspection result normal?
YES
Check intermittent incident. Refer to Inspection .
NO
Replace ICC steering switch. Refer to Removal & Installation .