Control Module Inspection: Notes
- Remove the air cleaner component. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION ).
- Measure the voltage at each TCM connector (wiring harness-side) terminal and refer to the TERMINAL VOLTAGE INSPECTION REFERENCE .
- If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under "Inspection item (s)".
WARNING:- Be careful not to damage the connector waterproofing when measuring the TCM terminal voltage. If damaged, the waterproofing efficiency could be negatively affected.
NOTE:- Use the ground of terminal A9 of the TCM connector (wiring harness-side) when measuring terminal voltage, as an error may occur when connecting the negative circuit tester to ground.
TERMINAL VOLTAGE INSPECTION REFERENCETerminal Signal Connected to Test condition Voltage (V) Inspection item (s) A1 Battery back up supply Battery Constant B+ - Inspect battery
- Inspect related harness
A3 Up switch (Selector lever component) Up switch (Selector lever component) Shift up (M range) Below 1.0 - Inspect selector lever component (See SELECTOR LEVER COMPONENT INSPECTION )
- Inspect related harness
Other ranges, all positions B+ A4 Down switch (Selector lever component) Down switch (Selector lever component) Shift down (M range) Below 1.0 - Inspect selector lever component (See SELECTOR LEVER COMPONENT INSPECTION )
- Inspect related harness
Other ranges, all positions B+ A5 Starter relay Starter relay Shift the selector lever to P or N position. Ignition switch ON B+ - Inspect starter relay
- Inspect related harness
Ignition switch OFF Below 1.0 A6 CAN_L PCM Because this terminal is for serial communication, good/no good judgment by terminal voltage is not possible. Carry out inspection according to DTCs. - - Inspect related harness
A7 M range switch M range switch M range Below 1.0 - Inspect Selector lever component (See SELECTOR LEVER COMPONENT INSPECTION )
- Inspect related harness
Other positions, all ranges B+ A11 Power supply Ignition switch Ignition switch ON B+ - Inspect Ignition switch
- Inspect related harness
Ignition switch OFF Below 1.0 A13 Back-up light relay Back-up light relay Ignition switch ON Shift the selector lever to R position. Below 1.0 - Inspect back-up light relay (See RELAY INSPECTION )
- Inspect related harness
Other B+ A14 CANJH PCM Because this terminal is for serial communication, good/no good judgment by terminal voltage is not possible. Carry out inspection according to DTCs. - - Inspect related harness
- Remove the TCM. (See TCM REMOVAL/INSTALLATION .)
- Verify that continuity or resistance at terminal is as indicated in the terminal continuity/resistance table.
- If there is any malfunction, inspect the parts under "Inspection item (s)".
- If the system does not work properly even though the parts or related wiring harnesses do not have any malfunction, replace the TCM. (See TCM REMOVAL/INSTALLATION .)
- If there is any malfunction, inspect the parts under "Inspection item (s)".