


Parts location
How to proceed with troubleshootingCoolant thermostat (coolant temperature below thermostat regulating
temperature)
Hint:
This dtc relates to the thermostat.
Description
This dtc is set when the engine coolant temperature (ect) does not reach 75°c
(167°f) despite
sufficient engine warm-up time having elapsed.
Monitor description
The ecm estimates the ect based on the starting temperature, en ...
Tc and cg terminal circuit
Description
Dtc output mode is set by connecting terminals tc and cg of the dlc3.
The dtcs are displayed by blinking the srs warning light.
Hint:
Make sure that dtc b1281 has not been output. If dtc b1281 has been
output, refer to the multiplex
communication system.
When each warning ...
Check for short circuit
If the wire harness is ground shorted (fig. 5), Locate
the section by conducting a resistance check with
the body ground (below).
Check the resistance with the body ground.
Disconnect connectors a and c, and measure
the resistance
Standard resistance (fig. 6)
Hint:
Measure ...