Dtc P1190 - Mazda Mazda6 Workshop Manual Supplement

DTC P1190

DTC P1190 Calibration resistor circuit malfunction
• PCM monitors input voltage from calibration resistor while engine is running. If input voltage from
DETECTION
CONDITION calibration resistor is below 0.2 V or above 4.8 V, PCM determines calibration resistor circuit malfunction.
• Calibration resistor malfunction
• Connector or terminal malfunction
• Short to GND in wiring between calibration resistor terminal A and PCM terminal 37, 62, 89, 11
POSSIBLE
• Short to power circuit in wiring between calibration resistor terminal A and PCM terminal 37, 62, 89, 11
CAUSE
• Open circuit in wiring between calibration resistor terminal A and PCM terminal 37, 62, 89, 11
• Open circuit in wiring between calibration resistor terminal C and PCM terminal 91
• PCM malfunction
CALIBRATION RESISTOR
CALIBRATION RESISTOR
HARNESS SIDE CONNECTOR
Diagnostic procedure
STEP
1 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Information
availability.
• Is any related repair information available?
F2–162
ON-BOARD DIAGNOSTIC
A
5
C
C A
B
D
INSPECTION
5
3 4
6
6
91
HARNESS SIDE CONNECTOR
Yes Perform repair or diagnosis according to available Service
Information.
• If vehicle is not repaired, go to next step.
No Go to next step.
PCM
37 (NO.1 CYLINDER)
62 (NO.2 CYLINDER)
89 (NO.3 CYLINDER)
11 (NO.4 CYLINDER)
PCM
89
62
91
ACTION
A6E407001083201
37
11