Dtc P1895 (No. 27): Torque Reduction Signal Circuit Malfunction - Suzuki Liana RH413 Service Manual

Step
3 Check engine torque signal circuit for open
1) Turn ignition switch OFF.
2) Check continuity between terminal "G07-23" of
disconnected harness side TCM connector and terminal
"G03-5" of disconnected harness side ECM connector.
Is continuity indicated?
4 Check engine torque signal circuit for ground short
1) Check continuity between terminal "G07-23" od
disconnected harness side TCM connector and ground.
Is continuity indicated?

DTC P1895 (No. 27): Torque Reduction Signal Circuit Malfunction

Wiring Diagram
2
1. TCM
2. ECM
DTC Detecting Condition and Trouble Area
DTC detecting condition
Voltage of torque reduction signal circuit TCM terminal is low
although TCM does not require ECM to reduce engine
torque.
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM and ECM memories by using scan tool.
3) After 1 minute passed from turning ignition switch ON, check DTC, pending DTC and freeze frame data, if
available.
Action
12V
G03-12 LT GRN/RED
G08
C41
3. Terminal arrangement of TCM connector (viewed from harness side)
4. Terminal arrangement of ECM connector (viewed from harness side)
Automatic Transmission/Transaxle:
Yes
Go to Step 4.
"BLU/RED" circuit
shorted to ground.
G07-18
G07
18
G04
12
• Torque reduction signal circuit malfunction
• TCM
• ECM
No
"BLU/RED" circuit open.
Intermittent trouble or
faulty TCM or ECM.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
If OK, substitute a
known-good TCM or
ECM and recheck.
S3RH0A5104037
1
3
G03
4
I2RH0B510033-01
Trouble area
5A-71