Mazda Mazda6 - Dtc P1190

F2–162
ON-BOARD DIAGNOSTIC
DTC P1190
A6E407001083201
Diagnostic procedure
DTC P1190 Calibration resistor circuit malfunction
DETECTION
CONDITION
• PCM monitors input voltage from calibration resistor while engine is running. If input voltage from
calibration resistor is below 0.2 V or above 4.8 V, PCM determines calibration resistor circuit malfunction.
POSSIBLE
CAUSE
• Calibration resistor malfunction
• Connector or terminal malfunction
• Short to GND in wiring between calibration resistor terminal A and PCM terminal 37, 62, 89, 11
• Short to power circuit in wiring between calibration resistor terminal A and PCM terminal 37, 62, 89, 11
• 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
STEP INSPECTION ACTION
1 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Information
availability.
• Is any related repair information available?
Yes Perform repair or diagnosis according to available Service
Information.
• If vehicle is not repaired, go to next step.
No Go to next step.
A
C
C
A
D
B
PCM
HARNESS SIDE CONNECTOR
91
PCM
CALIBRATION RESISTOR
5
2
2
5
43
7
7
6
6
11
37
62
89
91
37 (NO.1 CYLINDER)
62 (NO.2 CYLINDER)
89 (NO.3 CYLINDER)
11 (NO.4 CYLINDER)
CALIBRATION RESISTOR
HARNESS SIDE CONNECTOR