7355 code(s) in this category. Page 44 of 307. Select one to see the detailed diagnosis.
Motor (P)
EGR temperature sensor A below lower plausibility — short to ground. EGR mixes inert exhaust into intake to lo…
EGR temperature sensor A above upper plausibility — open signal or short to B+. EGR mixes inert exhaust into i…
EGR temperature sensor A signal jumps or drops out intermittently. EGR mixes inert exhaust into intake to lowe…
EGR temperature sensors A and B disagree by more than the allowed tolerance over a drive cycle. EGR mixes iner…
The secondary air injection (SAI) system does not work.…
The SAI system flow is incorrect.…
Electrical problem in the secondary air valve.…
Problem controlling the SAI pump fan/relay.…
Secondary air flow too low.…
A general electrical fault on AIR system switching valve A — open, shorted, or out of plausibility. The valve …
AIR system switching valve A drive circuit open — solenoid winding or harness break. Wiring faults of this kin…
AIR switching valve B drive circuit shorted to ground or B+.…
General electrical fault in the secondary air injection pump relay A circuit. Without the relay, the air pump …
A general electrical fault on AIR system control circuit B (typically the AIR pump driver line on the second p…
A general electrical fault on EGR temperature sensor B — open, shorted, or out of plausibility. The sensor mon…
EGR temperature sensor B reads in range but plausibility check fails — slow response or stuck reading.…
EGR temperature sensor B below lower plausibility — short to ground. EGR mixes inert exhaust into intake to lo…
EGR temperature sensor B above upper plausibility — open signal or short to B+. EGR mixes inert exhaust into i…
EGR temperature sensor B signal jumps or drops out intermittently. EGR mixes inert exhaust into intake to lowe…
AIR switching valve A drive line stuck low — short to ground. Wiring faults of this kind typically come from c…
The catalytic converter is not cleaning the exhaust gases efficiently. The upstream and downstream O2 sensors …
The catalytic converter does not reach operating temperature correctly.…
Low overall efficiency of the main catalytic converter.…
Inefficient catalytic converter under load.…