DTC C1119 (83)

BME040243000214

L3, AJ

Caution
• When attaching the tester lead to the ABS/TCS HU/CM harness connector, the SST (49 G066 001) must be used. (See ABS/TCS HU/CM INSPECTION.)

DTC

C1119 (83)

Torque reduction inhibit signal line

DETECTION CONDITION

• After engine is started, malfunction of torque reduction inhibit signal line is detected.

POSSIBLE CAUSE

• Open or short circuit of torque reduction inhibit line

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN PCM CONNECTOR AND GROUND)
• Turn ignition key to OFF.
• Disconnect PCM connector.
• Turn ignition key ON (engine OFF).
• Measure voltage between PCM connector (harness side) and GND.
 

Voltage

Approx. 5 V

 
• Is voltage as specified?
Yes
Go to Step 4.
No
Go to next step.
2
INSPECT WIRING HARNESS BETWEEN ABS/TCS HU/CM AND PCM FOR CONTINUITY
• Turn ignition key to OFF.
• Disconnect ABS/TCS HU/CM connector.
• Connect SST (adapter harness) to ABS/TCS HU/CM (harness side).
• Inspect for continuity between PCM connector (harness side) and terminal L of SST (adapter harness).
• Is there continuity?
Yes
Go to next Step.
No
Repair or replace harness, then go to Step 5.
3
INSPECT WIRING HARNESS BETWEEN PCM CONNECTOR AND GROUND FOR SHORT TO GROUND
• Inspect continuity between PCM connector (harness side) and ground.
• Is there continuity?
Yes
Repair or replace harness, then go to Step 5.
No
Go to Step 5.
4
INSPECT VOLTAGE PATTERN AT TERMINAL L OF ABS/TCS HU/CM
• Connect PCM connector and SST (adapter harness) to ABS/TCS HU/CM (ABS/TCS HU/CM side).
• Turn ignition key to ON.
• Inspect voltage pattern at ABS/TCS HU/CM terminal L using oscilloscope.
Yes
Go to Step 5.
No
Replace PCM, then go to Step 5.

• Is voltage pattern as specified?
5
VERIFY TROUBLESHOOTING COMPLETED
• Clear DTC from memory.
• Is the same DTC present?
Yes
Replace ABS/TCS HU/CM, then go to next step.
No
Go to next step.
6
VERIFY AFTER REPAIR PROCEDURE
• Is there any DTC present?
Yes
Go to applicable DTC inspection.
No
Troubleshooting completed.

MZR-CD (RF Turbo)

DTC

C1119 (83)

Engine control system, torque reduction inhibit information

DETECTION CONDITION

• Torque reduction inhibit information through CAN is out of specification or invalid value.
• Received control prohibition signal from PCM through CAN.

POSSIBLE CAUSE

• Malfunction of PCM

Diagnostic procedure

STEP

INSPECTION

ACTION

1
CHECK FOR PCM FOR DTCs
• Turn ignition key to OFF.
• Connect WDS or equivalent to DLC-2
• Turn ignition key to ON (engine off).
• Is DTC for engine control system obtained?
Yes
Follow inspection procedures for engine control system.
No
Go to next step.
2
VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear DTC from memory.
• Start engine.)
• Is same DTC present?
Yes
Replace ABS/TCS HU/CM, then go to next step.
No
Go to next step.
3
VERIFY AFTER REPAIR PROCEDURE
• Is there any other DTC present?
Yes
Go to applicable DTC inspection.
No
Troubleshooting completed.